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1
Saleh, Ahmed Taha Abdullah Galeb, Amir T. Gilmutdinov, and Igor G. Lapshin. "PHYSICAL AND CHEMICAL PROPERTIES OF OIL FRACTIONS FROM GAS CONDENSATE OF AL-MASILA FIELDS (REPUBLIC OF YEMEN)." Oil and Gas Business, no. 1 (March 6, 2024): 161–75. http://dx.doi.org/10.17122/ogbus-2024-1-161-175.
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The results of physical and chemical studies of gas condensate fractions, including gasoline, kerosene and diesel, are presented. Experiments were carried out on the separation of gasoline, kerosene and diesel fuel from gas condensate into fractions. The analysis showed that the collected gas condensate contains 38.02 % gasoline with a boiling point of 180 °C, 20.87 % kerosene with a boiling point of 140–240 °C and 43.67 % diesel fuel with a boiling point of 180–360 °C. The 140–240 °C fraction was obtained by secondary distillation of the straight-run fraction. The data obtained confirm that these fractions are high-quality raw materials for the production of motor gasoline, diesel fuel and jet fuel that meet modern standards. As a result of physical and chemical studies, the properties of the above mentioned fractions and their potential in the production of commercial petroleum products were determined.
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Silvio, Silvio Alex P. Mota, Andréia A. M. Mota Andréia, and Nélio T. Machado Nélio. "Influence of fractional distillation on the yield and quality of biofuels obtained through thermal catalytic cracking of crude palm oil." DYNA 88, no. 218 (2021): 62–71. http://dx.doi.org/10.15446/dyna.v88n218.90154.
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This paper investigates the influence of the fractional distillation on the yield and quality of biofuels obtained in a laboratory unit (Vigreux column) at atmospheric pressure, producing three distilled fractions: (1) green gasoline, (2) green aviation kerosene, and (3) green diesel. The quality of the distilled fractions was evaluated through physical-chemical analysis, FTIR spectroscopy, and GC-MS analysis. The fractional distillation of the crude biofuel provided biofuels in the form of distilled fractions with most values of physical-chemical properties within the limits established by national and international regulatory agencies and with experimental distillation curves similar to standard distillation curves. GC-MS analysis showed that the three distilled fractions had higher contents of hydrocarbons than oxygenated compounds and contained hydrocarbons characteristic of petroleum derivatives such as gasoline, aviation kerosene, and diesel.
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Fawzi, Nada Mahdi, and Sara Alaa Abed AL-Ameer. "Effect of Petroleum Products on Steel Fiber Reinforced Concrete." Journal of Engineering 19, no. 1 (2023): 13–34. http://dx.doi.org/10.31026/j.eng.2013.01.02.
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This Investigation aims to study the effect of adding Steel fibers with different volume fractions Vf (o.5, 0.75, and 1% by volume of concrete) with aspect ratio 100 on mechanical properties of concrete, and alsofinding the influence of petroleum products (Kerosene and Diesel) on mechanical properties of Steel Fiber Reinforced Concrete (SFRC).The experimental work consists of two groups: group one consists of specimens (cubes and prisms) plain and concrete reinforced with steel fiber exposed to continuous curing with water. Group two consists ofspecimens (cubes and prisms) plain and concrete reinforced with steel fiber exposed to kerosene and diesel after curing them in water for 28 days before exposure. The results of all tests refer that the specimens (plain and reinforced concrete with steel fiber with different volume fraction) exposed to kerosene were better than the specimens (plain and reinforced concrete with steel fiber with different volume fraction) exposed to diesel.
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Sujan, SMA, MS Jamal, M. Hossain, M. Khanam, and M. Ismail. "Analysis of gas condensate and its different fractions of Bibiyana gas field to produce valuable products." Bangladesh Journal of Scientific and Industrial Research 50, no. 1 (2015): 59–64. http://dx.doi.org/10.3329/bjsir.v50i1.23811.
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Physicochemical characteristics of raw gas condensate from Bibiyana gas field, commercial motor spirit, kerosene and diesel fuel as well as products obtained from gas condensate were determined. Experiments were carried out to take apart motor spirit, kerosene and diesel from gas condensate based on boiling ranges. The analysis revealed that collected gas condensate contains more than 50% is motor spirit (regular octane/petrol) in the boiling range of 21-1450C, 23% is kerosene in the boiling range of 140-2210C and 24-25% is diesel in the boiling range of 178-3350C. Remaining 2-3% is found as residue and system loss. The characteristics of different fractions (Motor spirit, Kerosene & Diesel) obtained from condensate are very comparable to commercial products (collected from nearby fuel pump station supplied by Meghna petroleum) and BSTI standard except two properties of petrol (octane number and sulfur content). The octane number of motor spirit is increased by adding 5% of supper octane or ethanol or MTBE.Bangladesh J. Sci. Ind. Res. 50(1), 59-64, 2015
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Machado, Nélio Teixeira, Andréia de Andrade Mancio da Mota, Jhuliana da Silva Santanna, et al. "Catalytic Cracking of Palm Oil: Effect of Catalyst Reuse and Reaction Time of the Quality of Biofuels-like Fractions." Energies 16, no. 20 (2023): 7063. http://dx.doi.org/10.3390/en16207063.
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This work systematically investigated the influence of catalyst reuse and reaction time on the yield and quality of organic liquid products (OLP) obtained in a cracking pilot plant at 450 °C and 1.0 atm. The distillation of OLP produced 04 (four) distilled fractions (gasoline, kerosene, and green diesel). The biofuels-like fractions are liquid mixtures with high content of hydrocarbons (alkanes, alkenes, and aromatics) with potential application as substitutes for fossil fuels in internal combustion motors. The quality of the biofuels was certified by physical-chemical analysis and FT-IR and GC-MS analysis. The experimental results showed the feasibility of applying the spent sodium carbonate twice in the catalytic cracking of vegetable oils. The physical-chemical properties (density, viscosity, acid value, saponification value, and flash point) of OLP decrease as the reaction time increases. The distillation of OLP yields 62.35% (wt.), producing green-like gasoline, kerosene, and diesel fractions rich in hydrocarbons. Therefore, biofuel-like fractions produced by distillation of OLP have a great potential for replacing partially petroleum-derived fuels.
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Desnia, Eunike, Edwand Rosie, Sandy Budi Hartono, Wiyanti Fransisca Simanullang, Adriana Anteng Anggorowati, and Suratno Lourentius. "Optimization of pyroliysis of polypropylene and polyethylene based plastic waste become an alternative oil fuel using bentonite catalyst." E3S Web of Conferences 475 (2024): 05006. http://dx.doi.org/10.1051/e3sconf/202447505006.
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The conversion is accomplished by pyrolyzing plastic bag waste at relatively low temperatures, around 50-225OC, and using a bentonite catalyst. The four products are alternative oils consisting of gasoline, kerosene, diesel, and non-condensable gas. The pyrolysis procedure is as follows: (a). 3 kg of chopped plastic waste mixed with a mass fraction of bentonite catalyst of around 0.035-0.0125 of the weight of plastic waste and then put into the pyrolysator; (b). the pyrolysator is heated with 1.5 kg of liquid petroleum gas (LPG) for 2-3 hours at a temperature ranging from 50-225oC; (c). pyrolysis results are stored separately in 3 pots: gasoline, kerosene, and diesel; (d). to clarify pyrolysis results by adsorption using a sand filter. The variables studied were the polypropylene (PP) and polyethylene (PE) plastic materials type and the effect of the mass fraction of bentonite catalyst ranging from 0.035 to 0.125. The research obtained relatively good results as follows. Pyrolysis of 3 kg of PP plastic waste with the mass fraction catalyst of 0.100 yielded 44.00% alternative gasoline, 10.76% alternative kerosene, 21.07% alternative diesel, and the remaining non-condensable gases. The flash (ASTM D7094) points of alternative gasoline, alternative kerosene, and alternative diesel are 84˚C, 68˚C, and 100˚C, respectively. The calorific value of each fuel product is 10,970 cal/g for alternative gasoline, 10,965 cal/g for alternative kerosene, and 10,816 cal/g for alternative diesel. In addition, the pyrolysis of PE plastic waste with the mass fraction of catalyt of 0.100 produced a yield of 27.65% for alternative gasoline, 17.11% for alternative kerosene, and 43.79% for alternative diesel, and the remaining was non-condensable gases. The respective flash points (ASTM D7094) of alternative gasoline, alternative kerosene, and alternative diesel are 84˚C, 70˚C, and 98˚C. The calorific values are alternative gasoline 10,979 cal/g, alternative kerosene 11,008 cal/g, and alternative diesel 11,027 cal/g.
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Tarusov, D. V., V. K. Slakaev, G. S. Mutovkin, et al. "Changing the properties of narrow fractions in the process of hydrotreating light coking gas oil." World of petroleum products 04 (2022): 36–41. http://dx.doi.org/10.32758/2782-3040-2022-0-4-36-41.
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Currently, the main products of the delayed coking plant in the Russian Federation (after hydrotreating) are gasoline and diesel fuel summer. The paper presents the results of a study of the properties of narrow fractions of coking gas oil and hydrotreated coking gas oil, which showed the prospect of organizing production based on the coking process of more marginal aviation kerosene and winter diesel fuel. The separation of products into narrow 20 degree fractions was carried out on an automatic distillation unit AUTOMAXX 9100. The dependences of nitrogen, sulfur, aromatics, density, and low-temperature properties on the boiling temperatures of narrow fractions of the composition of light coking gas oil and hydrotreated light coking gas oil have been studied. Analysis of the properties of narrow fractions of hydrotreated light coking gas oil has shown the theoretical possibility of obtaining fractions of jet fuel and winter diesel fuel on its basis, instead of summer diesel fuel.
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Yunusov, M. P., Sh M. Saidaxmedov, Sh B. Djalаlova, et al. "Synthesis and Study of Ni-Mo-Co Catalysts for Hydroprocessing of Oil Fractions." Catalysis for Sustainable Energy 2, no. 1 (2015): 43–56. http://dx.doi.org/10.1515/cse-2015-0003.
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AbstractThe problems of synthesis of Ni-Mo, Ni-Mo Co and Co-Mo oxide catalysts for hydrodesulfurization and hydrogenation of aromatic hydrocarbons in the composition of kerosene, diesel and oil fractions are discussed. The influence of spent adsorbent and kaolin as the additives on the physical-chemical and catalytic properties of bimetallic and trimetallic catalysts is established.
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Siregar, Yusraini Dian Inayati, Adi Riyadhi, Widya Anggun Damayanti, Rizkiansyah Rizkiansyah, and Muhammad Bagas Murditya. "Production of Bio hydrocarbons from Vegetable Oils and Animal Fats Using Magnesium Oxide as Catalyst." Jurnal Kimia Valensi 9, no. 2 (2023): 195–205. http://dx.doi.org/10.15408/jkv.v9i2.30865.
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Bio hydrocarbons are renewable fuels that can be produced through the catalytic deoxygenation of fatty acids, resulting in compositions like gasoline, kerosene, and diesel fractions derived from petroleum. The objective of this study is to generate gasoline, kerosene, and diesel from vegetable oils and animal fats using an MgO catalyst synthesized through the calcination of Mg-citrate. The characterization of the MgO catalyst, employing Fourier Transform Infrared (FTIR), X-Ray Diffraction (XRD) and Brunauer-Emmett-Teller (BET) surface adsorption method, revealed the presence of crystalline MgO and showed that mesoporous MgO with average pore size of 15.52 nm and exhibiting a surface area of 35.68 m2 g-1. The MgO catalyst was utilized in the deoxygenation reaction of palm oil, palm wax, and chicken fat, leading to the production of bio hydrocarbons with paraffin and olefin compositions like those found in gasoline, kerosene, and diesel derived from petroleum. Gas Chromatography-Mass Spectroscopy (GCMS) analysis of the liquid product demonstrated that the highest quantity of gasoline was derived from palm wax, followed by palm oil and chicken fat. Palm wax exhibits promising potential as a raw material for gasoline production through the deoxygenation reaction, specifically through decarboxylation and decarbonylation processes facilitated by the MgO catalyst.
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Achmad Faisal Faputri and Indah Agus Setiorini. "PERFORMANCE EVALUATION OF TRAYS IN ATMOSPHERIC FRACTIONATION COLUMN WITH SOUTH PALEMBANG DISTRICT (SPD) CRUDE OIL FEED." Jurnal Cakrawala Ilmiah 2, no. 7 (2023): 3133–48. http://dx.doi.org/10.53625/jcijurnalcakrawalailmiah.v2i7.5467.
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Distillation's role is to separate the components it separates based on the boiling point of each component to produce the desired product with the principle of evaporation, namely the evaporation of components. In the industrial world the role of fractional distillation is very important. This study aims to design a fractional distillation apparatus, to know the process and performance of the column and the theory of fractionation separation with the role of column support facilities. Using raw material in the form of 10 liters of SPD crude oil, the separation is divided into three fractions. Then the product from the top section is the gasoline fraction with a temperature range of 28 - 165 ¬¬oC, the middle section is the kerosene fraction with a temperature range of 165 - 300 oC, and the bottom part is the diesel fraction with a temperature range of 300 - 350 oC. So it can be concluded that the distillation column is in accordance with the desired calculation of the raw materials used.
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Nasution, A. S., Chairil Anwar, and E. Jasjfi. "CURRENT USES AND FUTURE CHALLENGES FOR ZEOLITE IN THE INDONESIAN OIL AND GAS PROCESSING INDUSTRY." Scientific Contributions Oil and Gas 22, no. 2 (2022): 25–32. http://dx.doi.org/10.29017/scog.22.2.1091.
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Oil and gas industry uses zeolite as an adsorbent to reduce moisture content of natural gas in LNG Plant, and as catalyst to convert the heavy petroleum fractions feeds into light clean fuels in refinery.Low quality crude oil, low residual fuel demand, and an increased demands and spesifications for light products (gasoline, kerosene, and diesel oil) and petrochemical products, future challenges for utilization zeolite as cracking catalyst in refinery are encouraging.
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KEYMIROV, M. A., A. T. KHANGELDIYEV, and T. G. KHOMMADOVA. "METHOD OF VOLUME INCREASE AND IMPROVEMENT OF PERFORMANCE CHARACTERISTICS OF HYDROTREATED DIESEL FUEL." Herald of Technological University 28, no. 2 (2025): 39–43. https://doi.org/10.55421/1998-7072_2025_28_2_39.
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The paper presents the results of obtaining diesel fuel with improved characteristics using the developed method. The essence of the developed method is that the Hydro Plus diesel fuel is produced in a diesel fuel hydrotreating unit by combining diesel fractions from atmospheric-tubular units and light gas oils from vacuum units, a catalytic cracking unit, and a delayed coking unit and hydrotreating the resulting mixture with hydrogen-containing gas formed in a catalytic reforming unit. After hydrotreating, technical kerosene (up to 15%) produced in atmospheric-tubular units is added to its composition. In the proposed method for increasing the volume and improving the performance properties of hydrotreated diesel fuel (ecologically clean fuel), the following additives are proposed to be used to level and improve some technical indicators of this fuel: Kerofluks 6100 - this additive prevents the formation of crystals of interconnected hydrocarbons of the limiting series, resulting in a decrease in the maximum filtration temperature and the freezing temperature of the resulting diesel fuel; Kerofluks 3614 - this additive acts as a paraffin dispersant by reducing the size of the resulting crystals of paraffin alkanes, as well as due to electrostatic forces; Kerokorr LA99C - this additive increases the lubricating properties of diesel fuel, resulting in increased wear resistance and service life of the engine. In addition, adding a certain amount of technical kerosene to the resulting environmentally friendly diesel fuel leads to an overall increase in the volume of the product produced, as well as an improvement in some performance characteristics of the final product (flash point and freezing point).
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Dos Santos, Shella Maria, and Leonardo Vasconcelos Fregolente. "Application of exploratory analysis to investigate cloud point of diesel and kerosene fractions." Rio Oil and Gas Expo and Conference 22, no. 2022 (2022): 349–50. http://dx.doi.org/10.48072/2525-7579.rog.2022.349.
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Alekperova, N. G., S. A. Aliyeva, A. F. Shahverdiyeva, Yu A. Abdullayeva, and G. S. Mukhtarova. "Commercial oil of Gerbi Absheron oil field." Azerbaijan Oil Industry, no. 9 (September 15, 2020): 55–58. http://dx.doi.org/10.37474/0365-8554/2020-8-55-58.
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The article presents the study results of commercial oil from Gerbi Absheron oil field. Conducted research shows that this oil is low sulfur, low paraffin, tarry and heavy. The gasoline fractions obtained can be used as a component of motor gasoline, a feedstock for the catalytic reforming process and to obtain various solvents as well. Light kerosene and diesel fractions are a valuable raw material for the production of jet and diesel fuels of various grades. From residues above 500 °C, commercial oil from Gerbi Absheron oil field without any additives can produce road bitumen grade BNB 50/70 and construction bitumen grade BNB 70/30, which meet basic requirements. According to the study results, the joint processing with the fuel-oil scheme of this oil with Absheron Kyupesi, Pirallahy, Darwin Kupesi and others oils similar to it in terms of their physical-chemical properties can be recommended.
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Gaylarde, Christine C., Fátima M. Bento, and Joan Kelley. "Microbial contamination of stored hydrocarbon fuels and its control." Revista de Microbiologia 30, no. 1 (1999): 01–10. http://dx.doi.org/10.1590/s0001-37141999000100001.
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The major microbial problem in the petroleum refining industry is contamination of stored products, which can lead to loss of product quality, formation of sludge and deterioration of pipework and storage tanks, both in the refinery and at the end-user. Three major classes of fuel are discussed in this article - gasoline, aviation kerosene and diesel, corresponding to increasingly heavy petroleum fractions. The fuel that presents the most serious microbiological problems is diesel. The many microorganisms that have been isolated from hydrocarbon fuel systems are listed. The conditions required for microbial growth and the methods used to monitor and to control this activity are discussed. The effects of various fuel additives, including biocides, are considered.
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Shakor, Dr Zaidoon M. Shakor, Salah M. Ali Ali, Harith A. Mohammed Mohammed, Harith A. Mohammed Mohammed, and Talal F. Hassan Hassan. "Optimization of Refining Strategy to Fractionate Various Iraqi Crude Oils into Lighter Fractions." Journal of Petroleum Research and Studies 8, no. 3 (2021): 15–24. http://dx.doi.org/10.52716/jprs.v8i3.227.
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The primary objective of this study is to predict optimum refining strategy to fractionatevarious Iraqi crude oils into lighter fractions depending on market monthly demand along oneyear.The monthly consumption of gasoline, kerosene and diesel was calculated and geneticalgorithm optimization method was used to calculate optimum cut points and blending ratio ofthree different crude oils (light Basrah, heavy Basrah and Kirkuk).The results prove that manipulation cut points within a year for a blend of three crude oils willdecrease 12.8% of distilled crude oil to produce the required amount of light cuts produced byrefining single crude oil.
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Khodiakov, A. A., S. V. Khlopkov, and V. V. Bernatskiy. "Physicochemical properties of Euro standard diesel fuel." Izvestiya MGTU MAMI 11, no. 1 (2017): 57–62. http://dx.doi.org/10.17816/2074-0530-66922.
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It is known that the quality of diesel fuel is characterized by both performance indicators and environmental properties of fuel. At the same time, the introduction of modern norms and standards that are associated with the modification of the component composition of fuel sets the task of controlling the physicochemical properties of diesel fuels. To solve the task, fuel samples, purchased from different fuel producers, and diesel fuel samples with an unknown prehistory, stored for a long time in the laboratory, were investigated. Mixtures of fuel with kerosene were also investigated. Diluted kerosene fuel, when it is used, reduces not only the power, but also the engine life. The density of the objects of the study was measured with oil meters. The viscosity and fractional composition of the fuels were determined using the VPZh-4 viscosimeter and the ARNS-1E oil distillation apparatus, respectively. Cetane numbers were measured by the OCTAN-IM indicator. As a result of the carried out researches it is established that the density, viscosity, fractional composition of diesel fuels correspond to those presented in the GOST standards. The acidity of samples with a long storage time and an unknown prehistory is greater than the GOST indicator value. The average value of the cetane number of diesel fuels measured by the OCTAN-IM indicator and different from the parameters required by the regulations is identical to the value given in the world fuel charter standard (ISO 5156). In all, without exception, fuels are present unsaturated and aromatic hydrocarbons. It is shown that in the fuel produced by different manufacturers, the ratio of unsaturated and aromatic hydrocarbons can be different. The density, viscosity and other characteristics of the mixture containing 10% kerosene are identical to the normalized values for diesel fuel. The density of the mixture containing 30% kerosene is not only below the norm, but also below the measured values of the density of diesel fuels.
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A.K Mohammed, Abdul Halim, and Saleem Mohammed Obeyed. "Treatment of Slack Wax by Thermal Cracking Process." Iraqi Journal of Chemical and Petroleum Engineering 15, no. 3 (2014): 1–7. http://dx.doi.org/10.31699/ijcpe.2014.3.1.
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This work deals with thermal cracking of slack wax produced as a byproduct from solvent dewaxing process of medium lubricating oil fraction in AL-Dura refinery. The thermal cracking process was carried out at a temperature ranges 480-540 ºC and atmospheric pressure. The liquid hourly space velocity (LHSV) for thermal cracking was varied between 1.0-2.5 . It was found that the conversion increased (61 - 83) with the increasing of reaction temperature (480 - 540) and decreased (83 - 63) with the increasing of liquid hourly space velocity (1.0 - 2.5).The maximum gasoline yield obtained by thermal cracking process (48.52 wt. % of feed) was obtained at 500 ºC and liquid hour space velocity 1 . The obtaining liquid product at the best operating condition 500 ºC and LHSV 1 was fractionated into wide range fractions. Based on the determination of some properties for the distilled fractions and comparison (these properties with that required by standard requirements) it is possible to use the fractions of cracking products as a component for production of automobile gasoline, domestic kerosene, light diesel fuel and basic lubricating oils.
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Abou El Lei, Ibrahim M., and Adel Al Farjani. "Evaluation and Characterization Parameters of Crude Oils and Petroleum Fractions." مجلة علوم البحار والتقنيات البيئية 6, no. 2 (2020): 49–63. http://dx.doi.org/10.59743/jmset.v6i2.38.
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Characterization of crude oil has always been an area of interest in the refining field; However, the need to define the properties of crude oil has gained importance in the production and distribution processes, and this is done simply by measuring the properties of crude oil, as the properties of these properties change according to the geological nature in which the oil is found in the traps and thus the physical and chemical properties must be studied and defined for this type Oil or so, from these physical and chemical properties such as API° (American Petroleum Institute), specific weight, pour point, viscosity, total sulfur content, vapor pressure, distillation, initial boiling point (IBP), final boiling point (FBP), were evaluated. The hydrocarbon residue and contents of crude oils were collected from the various oil fields in the Masala, Sarir, and Al Fountain fields using standard ASTM procedures. The results of crude oils in the three oil fields were compared with each other and with other international crude oils. The standards and specifications of their petroleum products were also examined. This study was conducted on the crude oil of the obelisk, bed, and fountain in 2017 that are mixed together to feed the oil refinery in Tobruk. The standards and specifications of the mixture and petroleum products of the refinery, including light Naphtha, heavy Naphtha, Kerosene, and Diesel, were measured and compared with other types of crude oil. According to the evaluation criteria, the examined crude oils can be classified as light sweet crude oil due to the high API value and low sulfur content in it, the percentage of Diesel oil is low and the (K) factor was low. It was also found that light crude oil has a high percentage of light fracture and that the pour point of light crude oil is higher than that of heavy crude oil. The salt content was also shown to be low in the mixture compared to other types. An increase in the boiling point of the distillate was observed with an increase in the percentage of the fraction volume. Moreover, Diesel has a higher boiling point than kerosene which has a higher boiling point than naphtha for all of the combined fractions. It was also found that the water content had few effects on the crude oil.
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Fakeev, Aleksandr Y., and Natalya V. Lezhneva. "MODERNIZATION OF THE CONTROL SYSTEM OF THE DIESEL FUEL MIXING UNIT." Автоматизация процессов управления 3, no. 65 (2021): 26–32. http://dx.doi.org/10.35752/1991-2927-2021-3-65-26-32.
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Based on the analysis of the existing distributed control system of the diesel fuel mixing unit, the imperfection of the control loops of the kerosene fraction, the depressant-dispersant, cetane-increasing and antiwear additives were revealed due to the fact that they do not take into account the quality indicators of commercial diesel fuel if there are in-line analyzers of its characteristics in the automated system. It leads to the need for the operator to participate in the control of the flow rate of these flows. In this regard, the unit was simulated on the basis of experimental and statistical methods, based on the results of which a virtual analyzer of the lubricity of commercial diesel fuel was developed. Proposals have been formulated for the modernization of control loops with the consumption of depressant-dispersant and cetane-increasing additives, kerosene fraction, adjusted for the qualitative characteristics of commercial diesel fuel, as well as the consumption of antiwear additives, corrected according to the results of the readings of the developed virtual analyzer of the lubricity of fuel. Programs for the implementation of modernized control loops in the language of functional blocks of the Centum VP controller have been developed.
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Ukhanov, Denis A., Alexander P. Ukhanov, Oleg S. Volodko, and Alexander P. Bychenin. "LUBRICABILITY OF BIO-KEROSENE." Bulletin Samara State Agricultural Academy 10, no. 1 (2025): 17–21. https://doi.org/10.55170/1997-3225-2025-10-1-17-21.
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The purpose of the research – is to perform an experimental assessment of the lubricity of rapeseed and camelina biokerosene based on the results of tribological tests on a TU four-ball tribometer and an HFRR apparatus. The global trend in achieving carbon neutrality is the reduction of harmful emissions from land transport vehicles contained in exhaust gases and generated during the combustion of hydrocarbon fuels in internal combustion engines, through the wider use of alternative motor fuels with a small car-bon footprint. For the Russian Federation, with its huge reserves of hydrocarbon raw materials, at the present stage of economic development, a smooth energy transition from traditional types of hydrocarbon-based motor fuel to alternative fuels is advisable. A promising alternative motor fuel for transport diesel engines is biokerosene, which is a fuel composition based on aviation kerosene with the addition of vegetable oil and a cetane-increasing additive in a certain amount. Therefore, there is a need to experimentally determine not only the indicators of the basic physicochemical and operational properties (density, viscosity, cetane number, lower calorific value, fractional composition, fluidity, environmental friendliness, etc.) of biokerosene, but also its lubricity. For this pur-pose, comparative tribological tests of friction prototypes were carried out using a TU tribometer and an HFRR apparatus using the average wear spot of balls in four lubricating media: petroleum summer diesel fuel, aviation kerosene and biokerosene obtained by adding rapeseed and camelina oils to aviation kerosene.
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Osadebe, Anwuli U., and Chika B. Chukwu. "Degradation properties of Rhizobium petrolearium on different concentrations of crude oil and its derivative fuels." Environmental and Experimental Biology 21, no. 3 (2023): 83–92. http://dx.doi.org/10.22364/eeb.21.10.
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The degradative efficiency of the recently identified species, Rhizobium petrolearium, on crude oil, diesel, petrol and kerosene was analysed in this study in order to assess its potential as a bioresource in environmental remediation and to investigate the effect of pollutant concentration on degradation efficiency. The identity of the isolate was confirmed by 16S rRNA sequencing and the variation in crude oil and fuel concentration during the biodegradation assay were measured using gas chromatography. Crude oil and the fuels were readily biodegradable at both single and tenfold concentrations, with petrol being the most degraded by the end of the study. Pollutant concentration was shown to affect degradation properties. At 1% concentration, the hydrocarbon compounds were almost completely degraded (99.3 to 99.6%) by day 5, but at the 10% concentration, the degradation level ranged from 31.8 to 63.8% on day 21. Crude oil and diesel oil showed the lowest biodegradation rates at 1% concentration and had half-lives of 0.68 and 0.64 days, respectively. Crude oil and kerosene were the most poorly degraded at 10% concentration with half-lives of 39.61 and 19.80 days, respectively. The C9 – C17 aliphatic fractions were generally the most readily utilised. This study presents a description of the biodegradation capabilities of R. petrolearium against crude oil and its derivative fuels and provides data regarding the possible role of this isolate in the development of bioaugmentation-focused bioremediation systems.
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Allwar, Allwar, Rina Maulina, Tatang Shabur Julianto, and Annisa Ayu Widyaningtyas. "Hydrocracking of Crude Palm Oil over Bimetallic Oxide NiO-CdO/biochar Catalyst." Bulletin of Chemical Reaction Engineering & Catalysis 17, no. 2 (2022): 476–85. http://dx.doi.org/10.9767/bcrec.17.2.14074.476-485.
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The bimetallic oxide NiO-CdO/biochar catalyst was prepared by coprecipitation and calcination methods. Characterizations of catalyst were carried out using Fourier Transform Infra Red (FTIR), Surface Area Analyzer (SAA), X-ray Diffraction (XRD), and Scanning Electron Microscope-Energy Dispersive X-ray (SEM-EDX) mapping methods. The catalyst showed a good average crystalized size of 12.30 nm related to the nanoparticles and high dispersion of Ni and Cd metals on the biochar surface. Analysis of liquid fuel products was observed using Gas Chromatography - Mass Spectrometry (GC-MS) which was separated to the main product of gasoline fraction (C6–C10), and the second product of kerosene fraction (C11–C16), and diesel fraction (C17–C23). The presence of the catalyst in the hydrocracking resulted in more liquid product of 56.55 wt% than the thermal cracking with a liquid product of 20.55 wt%. The best performance activity of catalyst was found at a temperature of 150 °C with high selectivity to hydrocarbon fuel with 12 types of gasoline fractions (39.24 wt%) compared to gasoline fractions obtained at higher hydrocracking temperatures of 250 °C and 350 °C. The results of this study showed that the bimetallic oxide catalyst supported with biochar from palm kernel shell plays an important role in the hydrocracking process to increase the selectivity of the gasoline fraction. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
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Hasanudin, Hasanudin, Addy Rachmat, Muhammad Said, and Karna Wijaya. "Kinetic Model of Crude Palm Oil Hydrocracking Over Ni/Mo ZrO2–Pillared Bentonite Catalyst." Periodica Polytechnica Chemical Engineering 64, no. 2 (2019): 238–47. http://dx.doi.org/10.3311/ppch.14765.
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Crude Palm Oil hydrocrcaking has been carried out over Ni/Mo ZrO2–pillared bentonite catalyst in a fixed bed reactor. Crude Palm Oil hydrocracking over Ni/Mo ZrO2–pillared bentonite catalyst formed 3 products i.e. gas, oil and coke. The oil product from Crude Palm Oil hydrocracking was analyzed by using gas chromatography to determine its composition. Three types of fraction were classified i.e. gasoline, kerosene and diesel oil. In this research, the focused of the study is of hydrocracking kinetics by using lump kinetic models. The kinetic model was solved by using the software MATLAB R2018b involves the effect of catalyst activity on the reaction rate. The results of the kinetic study show that the 4-lump (Crude Palm Oil, gas coke and oil) and 6-lump reaction models (Crude Palm Oil, gas, coke, gasoline, kerosene and diesel) can be used to explain the Crude Palm Oil hydrocracking over Ni/Mo ZrO2–pillared bentonite catalyst. The 4-lump kinetic model has 5 rate constants and the 6-lump kinetic model has 14 rate constants.
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Ranskiy, Anatoliy, Olga Gordienko, Bogdan Korinenko, et al. "Pyrolysis Processing of Polymer Waste Components of Electronic Products." Chemistry & Chemical Technology 18, no. 1 (2024): 103–8. http://dx.doi.org/10.23939/chcht18.01.103.
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The recycling of ABS plastic as a component of electronic and electrical equipment waste by the method of low-temperature pyrolysis is shown and substantiated as well as obtaining alternative sources of energy: pyrolysis liquid, gas mixture, and pyrocarbon. The main components of electronic and electrical equipment waste, which consists of plastic and refractory oxides, along with copper and iron compounds, were analyzed. The composition of precious, toxic, rare, basic metals, and plastic waste is given. It is shown that the waste of electronic and electrical equipment is a valuable secondary raw material and requires separate environmentally friendly processing technologies. The thermal destruction of ABS plastic as a component of waste electronic and electrical equipment at a technological installation of periodic action in the absence of air oxygen and an acid-type catalyst was investigated. Gasoline, naphtha, kerosene, and diesel fractions were obtained by distillation of the pyrolysis liquid, and their qualitative and quantitative composition was studied by gas chromatography. It was established that the vast majority of compounds in different fractions are saturated С8–С16 hydrocarbons of normal and isomeric structure.
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Alrubaye, Saleem Mohammad, Mohammed Saadi Hameed, and Abdulkareem Dahash Affat. "Studying Thermal Cracking Behavior of Vacuum Residue." Iraqi Journal of Chemical and Petroleum Engineering 21, no. 3 (2020): 45–49. http://dx.doi.org/10.31699/ijcpe.2020.3.6.
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In the oil industry, the processing of vacuum residue has an important economic and environmental benefit. This work aims to produce industrial petroleum coke with light fuel fractions (gasoline, kerosene , gas oil) as the main product and de asphalted oil (DAO) as a side production from treatment secondary product matter of vacuum residue. Vacuum residue was produced from the bottom of vacuum distillation unit of the crude oil. Experimentally, the study investigated the effect of the thermal conversion process on (vacuum residue) as a raw material at temperature reaches to 500 °C, pressure 20 atm. and residence time for about 3 hours. The first step of this treatment is constructing a carbon steel batch reactor its volume about 700 ml, occupied with auxiliary control devices, joined together with an atmospheric distillation unit. The amounts of light fuel fraction products are 2 vol. % for light gasoline, 4 vol. % for heavy gasoline 17 vol. % for kerosene and 24 vol. % for diesel oil. The second step was the treatment the residue matter from first step, in order to separate the petroleum coke matter from asphaltene matter by solvent deasphalting matter (propane) to prepare de asphalted oil (DAO). The amount of de asphalted oil is about 15 vol. %, leaving asphaltene with impurities to precipitate at the bottom of the reactor and these materials consist of the petroleum coke structure. The petroleum coke separate and calcined at approximately (1000 - 1100) °C, to eliminate the reminder of volatile matter from the industrial coke and reach to commercial property.
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Fedkin, V. S., S. V. Popov, and O. V. Khabibrakhmanov. "Selection of the evaporating agent of the partial topping tower." Proceedings of the Voronezh State University of Engineering Technologies 83, no. 4 (2021): 252–60. http://dx.doi.org/10.20914/2310-1202-2021-4-252-260.
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The operation of the primary oil refining unit significantly affects the technical and economic indicators of the oil refinery. One of the most common options for the technological scheme of the installation provides for partial topping of oil in column K-1 with its further fractionation in the main atmospheric and vacuum columns. The separation of the gasoline fraction in the K-1 column is possible using various evaporating agents - water vapor, the reflux of the main atmospheric column, kerosene or diesel fractions. The paper evaluates the possibility of using the C1 ? C4 gas fraction obtained from delayed coking and gas fractionation units as an evaporating agent on column K-1, as well as after separating the gas-liquid flow from the top of column K-1. The studies were carried out using the Honeywell UniSim Design modeling system. To calculate the thermodynamic properties of the components of the fractions, the Peng-Robinson method was chosen. The calculations were carried out when considering two different oils as raw materials, which have significantly different contents of gas and gasoline (end boiling point 180 ° C) fractions in them. In the crude oil-1, their potential amount is 0.204 of the total volume, and in the oil-2 stream - 0.065. The operation of a typical column for partial topping of oil is simulated, containing 22 trays (contact device efficiency 0.7), feedstock is fed to 13 (the main amount of 479 t / h) and 18 trays (10 t / h) with a temperature of 232 ? and a pressure of 517.1 kPa, the pressure of the top and the bottom of the column is 280 and 294.2 kPa, respectively. The active specifications, according to which the Honeywell UniSim Design environment ensures the convergence of the calculation processes, are reflux R = 0.1 and a fixed withdrawal of distillate (17% of the potential content in oil), which is 15300 kg / h for crude oil-1 and 5000 kg / h when using raw oil-2. The flow rate of evaporating agents supplied to the bottom of the apparatus was 6000 kg / h. When calculating columns with different evaporating agents, the achieved estimates of the content in the distillate of the gasoline fraction with the end-boiling point of 180 ° C were evaluated and compared. Calculations have shown the possibility of using the C1 ? C4 gas fraction as an evaporating agent, which, in terms of its thermophysical parameters, occupies an intermediate value between the use of water vapor on the one hand and the use of a gasoline or kerosene-gas oil fraction on the other.
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Bemis, Restina, Novesar Jamarun, and Syukri Arief. "PENGOLAHAN LIMBAH POLIPROPILEN MENJADI BAHAN BAKAR CAIR MELALUI METODE PIROLISIS." Jurnal Riset Kimia 5, no. 2 (2012): 158. http://dx.doi.org/10.25077/jrk.v5i2.217.
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Plastics become the biggest environmental problem when it accumulate in landfills because its non-biodegradable properties. To handle the problems, the plastics were processed to produce liquid fuels by means pyrolysis method which was in this case with and without a catalyst. In this work, polypropylene was used as a precursor and SiO2, zeolites, CaO, Fe as catalysts. FTIR spectrum of pyrolized polypropylene with and without catalysts both have shown C = C functional group at 1648 cm-1. GCMS analysis confirmed the availability of chain length of hydrocarbon between C7 -C27 which is mixture of kerosene and diesel fractions. Catalysts can lower the temperature and time reaction of pyrolysis process as they increase rendement (%) of product. Liquid fuels that produced from polypropylene pyrolysis without catalyst was 72.06%, and with catalysts were 79.59% (SiO2), 74.76%, (zeolite), 76.80% (CaO), and 76.83% (Fe).
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Karpov, N. V., N. N. Vakhromov, E. V. Dutlov та ін. "First in the World Industrial Batch of Arctic Diesel Fuel with Application Temperature of up to Minus 65°С". Chemistry and Technology of Fuels and Oils 629, № 1 (2022): 11–15. http://dx.doi.org/10.32935/0023-1169-2022-629-1-11-15.
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Until quite recently, Arctic diesel fuel was produced in accordance with GOST R 55475 with a maximum cold filter plugging point of up to minus 52°C using a depressant-dispersing additive. However, in the Arctic, the temperature drops to minus 60°C and below, and the use of depressant-dispersing additive provokes product stratification with a sharp deterioration in the properties of the lower layer. This limited the application of arctic diesel fuel in the Arctic. For such conditions, the Ministry of Defense of the Russian Federation developed its own standards for Arctic diesel fuel without the use of depressant-dispersing additives, and suggesting values not higher than minus 65°C for the cloud point, pour point and cold filter plugging point. An obstacle for obtaining a product with such properties is the difficulty of simultaneously providing the required cetane number and low temperature properties. This paper presents a method for obtaining Arctic diesel fuel with desired properties based on deeply isomerized diesel fractions. To implement the project, an analysis of the existing units at Slavneft-YANOS PJSC was carried out, and a chain of units for primary oil refining, hydrotreating 80 atm and isodewaxing was made. In the course of a number of experiments new causes of the onset of cold filter plugging point were discovered, which were explained by an increase in the diesel fuel viscosity at extremely low temperatures. To reduce the viscosity of the product, hydrocracked kerosene was added to the formula. In May 2020, permits were received from the Ministry of Defense of the Russian Federation, and in October 2021, for the first time in the Russian Federation and in the world, the first industrial batch of 3,000 tons was successfully produced.
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Pyshyev, Serhiy, Michael Bratychak, Vasyl Hayvanovych, Pavlo Paniv, and Witold Wacławek. "Water Effect on Oxidative Desulphurization Process of Straight-Run Kerosene Fraction / Wpływ Wody Na Utleniający Proces Odsiarczania Frakcji Nafty." Ecological Chemistry and Engineering S 20, no. 1 (2013): 55–68. http://dx.doi.org/10.2478/eces-2013-0004.
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Abstract Sulphur dioxide obtained during fuels burning in combustion engines is one of the main pollutants. In diesel oils and gasolines the sulphur content must be 5-10 ppm and in jet fuels - 300-3000 ppm. However the production of hydrofined jet fuel is problematic. The reason is deterioration of fuel stability and antioxygenic properties. The oxidative desulphurization of straight-run kerosene was investigated. This method combines oxidation by atmospheric oxygen of sulphur compounds under increased temperature and pressure in the presence of water in the reaction medium, and removal of oxidized sulphur compounds from the oxidation-treated fuel via rectification. It was showed that water partially extracts from the hydrocarbon medium acidic compounds, formed in the beginning stage of oxidation, dissociation of which leads to the formation in water acidic medium. As a result, a pathway of the hydroperoxides decomposition partially changes from the formation of carbonic acids and oxyacids to the formation of alcohols, phenols and alkylphenols, which displayed an inhibitory effect in hydrocarbon oxidation. It was assumed that an inhibitory effect of water, in addition to the creation reverse micelles with peroxides and complexes with free radicals, caused by oxidation products created in the beginning stage of oxidation. The effect of water/kerosene ratio on the oxidative desulphurization of straight-run kerosene fraction has been examined. It was found that water improves process selectivity with insignificant influence on the degree of sulphur recovery. The optimum value of water/kerosene ratio for the fuel containing 0.15% mass of sulphuric compounds has been determined.
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Chen, Haijun, Yanzeng Tong, and Lifeng Wu. "Forecast of Energy Consumption Based on FGM(1, 1) Model." Mathematical Problems in Engineering 2021 (February 15, 2021): 1–11. http://dx.doi.org/10.1155/2021/6617200.
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The normal supply of energy is related to the stable development of the economy and society. Forecasting energy consumption helps prepare for the normal supply of energy. In the study of energy consumption forecasting, different scholars have used different forecasting models. This paper uses five-year energy consumption data in the Beijing-Tianjin-Hebei region and uses the grey fractional FGM(1, 1) model to analyze the next six years. Then, the energy consumption of three places is predicted. The advantage of the grey score FGM(1, 1) model is that it can get more accurate prediction results based on a small amount of information. In this study, relatively outdated information affects the accuracy of prediction results. However, other prediction models have great limitations on data. Choosing the grey number fractional model for prediction research can get a more reasonable prediction result. We use the FGM(1, 1) model to make predictions and get the prediction results. In Beijing, the growth rate of natural gas consumption has slowed down and will be basically stable by 2023. The average annual deceleration of coal consumption is 32%. The average annual deceleration of coke consumption is 10%. Crude oil consumption decreased by 6.3% annually. Gasoline consumption is slowly increasing. The consumption of kerosene increased about 8% annually. Diesel consumption is slowly decreasing. Fuel oil consumption is reduced by 17% annually. The average annual growth rate of power consumption exceeds 6%. In Tianjin, the annual growth rate of natural gas consumption is about 5%. Coal consumption is reduced by about 8% every year. The average annual deceleration of coke consumption is 7%. Crude oil consumption decreased by 2.4% annually. Gasoline consumption is slowly decreasing. The consumption of kerosene has increased by about 20% annually. Diesel consumption is slowly decreasing. Fuel oil consumption is reduced by 20% annually. Electricity consumption is slowly increasing. In Hebei Province, the annual growth rate of natural gas consumption is about 15%. Annual coal consumption is reduced by about 3%. Coke consumption remained stable. Crude oil consumption is reduced by 3% annually. Gasoline consumption is slowly increasing, and kerosene consumption has increased by about 31% annually. Diesel consumption is reduced by about 3% annually. Fuel oil consumption remained stable. Electricity consumption is slowly increasing.
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Machado, Nélio Teixeira, Karen Marcela Barros da Costa, Silvio Alex Pereira da Mota, Luiz Eduardo Pizarro Borges, and Andréia de Andrade Mancio da Mota. "Upgrading/Deacidification of Biofuels (Gasoline, Kerosene, and Diesel-like Hydrocarbons) by Adsorption Using Activated Red-Mud-Based Adsorbents." Energies 18, no. 13 (2025): 3250. https://doi.org/10.3390/en18133250.
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This study explored the adsorption of carboxylic acids, especially free fatty acids (FFAs), present in biofuel (distilled fractions of bio-oil such as gasoline-like hydrocarbons, kerosene-like hydrocarbons, and diesel-like hydrocarbons) using red-mud-based adsorbents. The red mud was thermally activated at 40 °C and 600 °C and chemically activated with 0.25M, 1M, and 2M HCl. Analytical techniques were used to characterize the adsorbents’ properties. At the same time, the study examined factors like feed type, adsorbents, FFA contents, adsorbent percentage, activation temperature, acid solution concentration, and contact time to assess adsorption efficiency. The characterization results indicated that chemical activation with 0.25M HCl significantly increased the surface area to 84.3290 m2/g, surpassing that of the thermally activated samples (35.2450 m2/g at 400 °C). Adsorption experiments demonstrated that all chemically activated samples, with 5% adsorbent, adsorbed over 2000 mg of FFAs per gram of adsorbent, with CARM-1M HCl achieving 100% removal of acids from gasoline-like hydrocarbons. Kinetic modeling showed that the pseudo-second-order model best represented the adsorption data, as evidenced by high R2 values and close agreement between the experimental and calculated qe values. Therefore, adsorption with chemically activated red mud efficiently deacidifies biofuels, providing a cost-effective and promising approach for their upgrading.
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Sandika, Nedia, Yohandri Bow, and Abu Hasan. "Biofuel from Pyrolysis Waste Lube Oil of Refinery Unit III Using Fly Ash of Coal Combustion as a Catalyst." Indonesian Journal of Fundamental and Applied Chemistry 6, no. 3 (2020): 130–35. http://dx.doi.org/10.24845/ijfac.v6.i3.130.
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Lube oil waste obtained from Utilities Unit, Crude Distillation Unit, and Crude Distillation & Light End Unit at Refinery Unit III Plaju Palembang South Sumatra. The process of pyrolysis of lube oil waste using fly ash catalyst is expected to produce fuel oil. Lube oil waste pyrolysis uses Fly Ash catalysts with a total catalyst of 500 g with a temperature range variation of 0-85, 85-16, 165-250, 250-300, and 300-350oC, while pyrolysis of waste lube oil without catalysts with a variation in the temperature range of 0-85, 85-165, 165-250, 250-300, and 300-350 oC. Temperature range variations are referenced based on boiling route solvent fraction (0-85 C), premium fraction (85-165 oC), kerosene fraction (165-250 C) and diesel (250-350 C). Solvent fraction cannot be analyzed because there is no product result whether it is pyrolysis process using catalyst or without catalyst, Premium Fraction is only produced using catalyst, analysis result Octane Number 76.6. Sulfur content, Density and flash point analysis of pyrolysis products using catalysts and without catalysts in accordance with kerosene products in the market. Solar fraction of pyrolysis process using catalyst and without catalyst, Analysis results cetane numbers 43.2 and 45.6 have not met the specifications of solar products
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Ahmad, Waqas, Atiq Ur Rahman, Imtiaz Ahmad, et al. "Oxidative Desulfurization of Petroleum Distillate Fractions Using Manganese Dioxide Supported on Magnetic Reduced Graphene Oxide as Catalyst." Nanomaterials 11, no. 1 (2021): 203. http://dx.doi.org/10.3390/nano11010203.
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In this study, oxidative desulfurization (ODS) of modeled and real oil samples was investigated using manganese-dioxide-supported, magnetic-reduced graphene oxide nanocomposite (MnO2/MrGO) as a catalyst in the presence of an H2O2/HCOOH oxidation system. MnO2/MrGO composite was synthesized and characterized by scanning electron microscope (SEM), energy dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD) analyses. The optimal conditions for maximum removal of dibenzothiophene (DBT) from modeled oil samples were found to be efficient at 40 °C temperature, 60 min reaction time, 0.08 g catalyst dose/10 mL, and 2 mL of H2O2/formic acid, under which MnO2/MrGO exhibited intense desulfurization activity of up to 80%. Under the same set of conditions, the removal of only 41% DBT was observed in the presence of graphene oxide (GO) as the catalyst, which clearly indicated the advantage of MrGO in the composite catalyst. Under optimized conditions, sulfur removal in real oil samples, including diesel oil, gasoline, and kerosene, was found to be 67.8%, 59.5%, and 51.9%, respectively. The present approach is credited to cost-effectiveness, environmental benignity, and ease of preparation, envisioning great prospects for desulfurization of fuel oils on a commercial level.
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Akhmadiev, G., and K. Fatykhov. "Characteristics of the installation and devices for deep processing of hydrocarbon raw materials." Bulletin of Science and Practice, no. 6 (June 14, 2017): 166–69. https://doi.org/10.5281/zenodo.808725.
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The present work relates to the field of oil refining, petrochemical, chemical and fuel and energy industries, or more precisely to the processing of hydrocarbon raw materials. The essence is to increase the yield of light target products and increase the depth of industrial processing of raw materials. The raw material is heated by direct contact with high–boiling high–molecular fractions heated to a subcritical temperature that is lower than the start temperature of the avalanche–free uncontrolled thermal cracking, then a mixture of raw materials and high–molecular fractions to initiate a controlled process of breaking the molecular bonds, i.e. Thermomechanical cracking, subjected to mechanical and wave effects of a different nature and a wide range of frequencies. In this case, the depth of processing is increased by 1.5 to 15 times, depending on the composition of the feedstock.
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Vorob'ev, Yu V., and A. V. Dunaev. "Increasing the calorific value of motor fuels." Traktory i sel hozmashiny 83, no. 8 (2016): 48–51. http://dx.doi.org/10.17816/0321-4443-66236.
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The results of the studies of mechanochemical activation of motor fuels aimed to increase their calorific value and reduce their consumption in automotive internal combustion engines are summarized. Traditionally, the improvement in fuel efficiency and environmental friendliness of such engines is achieved by high-tech modernization of fuel systems. But it can also be achieved by modification of fuels that changes their properties and increases the calorific value. By means of methods of mechanochemistry, using the equipment with low power consumption and a simple process, the mixtures and separate oil fractions are destroyed with the formation of low molecular homologs, as well as hydrogen and carbon. The degradation of saturated hydrocarbons is the breaking of chains, and unsaturated ones are destroyed through the formation of saturated products. The hydrogenation by degradation products of the starting material is possible. The mechanochemistry of fuels is investigated on the example of a combined static mixer-activator. The activator in the form of cylinder of 150 mm length and 30-50 mm diameter is used for modifying motor fuels; it has three serial camera, embeds in any of the fuel systems of internal combustion engine, does not require the drive, is free of chemical substances, does not affect the performance of gasoline, diesel fuel, aviation kerosene, fuel oil, does not reduce the engine lifetime. The tests were performed on a test bench with YaMZ-236 diesel engine using three different diesel fuels, at first with installation of activator in the fuel supply line of fuel high pressure pump, and then in its main drain line. When idling of diesel engine with engine speed of 900-1300 rpm, the reduction of activated fuel consumption on average by 26.3% is revealed in eleven tests. The methods for improving the calorific value of fuels by different impacts are reviewed.
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Dexenov, M. K., and F. R. Ismagilov. "Utilization of Emissions from Reactors of a Delayed Coking Installation." Ecology and Industry of Russia 24, no. 11 (2020): 4–9. http://dx.doi.org/10.18412/1816-0395-2020-11-.
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The features of utilization of low-pressure gas emissions from reactors of a delayed coking installation are considered. A technical solution has been proposed for the compression and purification of low-pressure hydrocarbon gases from hydrogen sulfide by using a liquid-ring compressor with an amine solution mixed with a hydrocarbon fraction taken in a certain ratio as a working liquid. Gasolines, kerosene, diesel fuels and any other hydrocarbon mixtures with low viscosity can be used as the hydrocarbon fraction. Preferably use gaseous gasoline obtained during the compression of gas or distillate in the main distillation column. Test results and computational studies confirm the advantages of using a binary working fluid compared to using the components separately.
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Dexenov, M. K., and F. R. Ismagilov. "Utilization of Emissions from Reactors of a Delayed Coking Installation." Ecology and Industry of Russia 24, no. 11 (2020): 4–9. http://dx.doi.org/10.18412/1816-0395-2020-11-4-9.
Full textAbstract:
The features of utilization of low-pressure gas emissions from reactors of a delayed coking installation are considered. A technical solution has been proposed for the compression and purification of low-pressure hydrocarbon gases from hydrogen sulfide by using a liquid-ring compressor with an amine solution mixed with a hydrocarbon fraction taken in a certain ratio as a working liquid. Gasolines, kerosene, diesel fuels and any other hydrocarbon mixtures with low viscosity can be used as the hydrocarbon fraction. Preferably use gaseous gasoline obtained during the compression of gas or distillate in the main distillation column. Test results and computational studies confirm the advantages of using a binary working fluid compared to using the components separately.
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Wang, Wan Fu, Wei Dong Du, Lin Tang, and Peng Liu. "Technology and Application of Oil Sludge Pyrolysis in Rotary Furnace." Applied Mechanics and Materials 130-134 (October 2011): 2371–78. http://dx.doi.org/10.4028/www.scientific.net/amm.130-134.2371.
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Technology of pyrolysis rotary furnace for oil sludge was conducted in this paper, which feature with natural gas as fuel, multi-combuster for heating controlling and novel dynamic-static sealing structure at both ends of the rotary furnace. A complete set of technical process was designed and operated with processing scale of 10 tons/day of oil sludge (The sludge moisture content is 80%). The result indicates that the system meets the standard of safe running. Recovery rate of the oil in sludge is more than 80%, while the oil content of pyrolytic residues is less than 0.3%. The main components of non-condensable gas include methane and hydrogen, occupying 35% and 40% respectively. There are high content of lightweight fractions in pyrolysis oil, such as gasoline, kerosene and diesel oil, in which the C10-C15 is near to 50%-60% and aromatics can be up to 60％. Finally, due to the high contents of carbon and aluminum salt in residue, it is much worth for the carbon and aluminum salt recovery.
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Quesada, Lucía, Mónica Calero, María Ángeles Martín-Lara, Antonio Pérez, Marco F. Paucar-Sánchez, and Gabriel Blázquez. "Characterization of the Different Oils Obtained through the Catalytic In Situ Pyrolysis of Polyethylene Film from Municipal Solid Waste." Applied Sciences 12, no. 8 (2022): 4043. http://dx.doi.org/10.3390/app12084043.
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Nowadays, the thermal and catalytic decomposition of plastic wastes by pyrolysis is one of the best alternatives to convert these wastes into quality fuel oils, thus replenishing some petroleum resources. This work studied the catalytic pyrolysis of polyethylene film waste from the remaining organic fraction on different catalysts under dynamic operating conditions in a batch reactor. These catalysts have been characterized through isotherms of adsorption-desorption with N2 and X-ray powder diffraction for structural characterization to see the differences in their use. The results obtained have been compared with the pyrolysis of the same material without a catalyst. Special attention has been paid to the similarities and differences with thermal pyrolysis. The characterization of the liquid fraction, including physical and chemical properties, has been carried out. The liquid yield varies from 37 to 43%; it has good calorific values of 46–48 MJ/kg, an average density of 0.82 g/cm3, and a fairly low viscosity compared to the product without the catalyst. Other properties like the American Petroleum Institute (API) gravity or pH were also determined and found to be similar to conventional fuels. Oils are mainly composed of paraffins, naphthenes, and aromatic hydrocarbons. The general distribution of carbons is C7 to C31. Finally, a detailed analysis of the composition of liquid products shows they present heavy naphtha, kerosene, and diesel fractions in different proportions in the function of the catalyst used.
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Babu, Dr Chilakalapudi Meher. "Understanding the Hazards of Hexane and Short-Term Exposure to Air Contaminated with Hexane Affects the Nervous System and can Cause Dizziness." International Journal for Research in Applied Science and Engineering Technology 12, no. 7 (2024): 1441–46. http://dx.doi.org/10.22214/ijraset.2024.63792.
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Abstract: The term ‘hydrocarbon’ is self-explanatory which means compounds of carbon and hydrogen only. Hydrocarbons play a key role in our daily life. You must be familiar with the terms ‘LPG’ and ‘CNG’ used as fuels. LPG is the abbreviated form of liquified petroleum gas whereas CNG stands for compressed natural gas. Another term ‘LNG’ (liquified natural gas) is also in news these days. This is also a fuel and is obtained by liquifaction of natural gas. Petrol, diesel and kerosene oil are obtained by the fractional distillation of petroleum found under the earth’s crust. Coal gas is obtained by the destructive distillation of coal. Natural gas is found in upper strata during drilling of oil wells. The gas after compression is known as compressed natural gas. LPG is used as a domestic fuel with the least pollution. Kerosene oil is also used as a domestic fuel but it causes some pollution. Automobiles need fuels like petrol, diesel and CNG. Petrol and CNG operated automobiles cause less pollution. All these fuels contain mixture of hydrocarbons, which are sources of energy. Hydrocarbons are also used for the manufacture of polymers like polythene, polypropene, polystyrene etc. Higher hydrocarbons are used as solvents for paints. They are also used as the starting materials for manufacture of many dyes and drugs. Thus, you can well understand the importance of hydrocarbons in your daily life. In this unit, you will learn more about hydrocarbons
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Yakovlev, N. S., and S. G. Agaev. "Influence of physicochemical properties of depressor additives on their performance in diesel fuels." Proceedings of Universities. Applied Chemistry and Biotechnology 12, no. 4 (2023): 612–19. http://dx.doi.org/10.21285/2227-2925-2022-12-4-612-619.
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The work investigates the influence of the physicochemical properties of depressor additives on their performance in diesel fuels of various chemical and fractional compositions. Heavy, summer and marine diesel fuels were used. The following physicochemical properties of fuels were determined: cloud point, freezing point, density, viscosity, fraction composition and hydrocarbon content that formed a complex with carbamide. The content and molar mass distribution of individual n-alkanes in diesel fuels were determined. The following foreign depressant-dispersing additives were used: Dodiflow with codes 4971, 5416, 5817 and 7118, Keroflux with codes 3501, 5696a and Ofi-8863. Their active agents were isolated from the commercial additives by dialysis using semi-permeable rubber membranes. The dropping point of the active agents, their intrinsic viscosity in kerosene and the refractive index at 100 °C were identified. The content of vinyl acetate components and the degree of branching of aliphatic radicals of depressor additives were determined using infrared spectroscopy of the active agents. The relationship between the physicochemical properties of depressor-dispersing additives and their performance in diesel fuels was established. Additives characterised by a relatively high melting point, an average intrinsic viscosity and low branching of aliphatic compounds in the polymer structure exhibit the best performance in fuels. The consumption of additives to achieve the maximum depression of freezing point decreases with the transition from summer to marine fuel and further to heavy diesel fuel. A complex tкп / СВА value, comprising the ratio of the dropping points tкп and the content of vinyl acetate components in the additives, was proposed as a means of predicting the efficiency of depressant additives СВА. In the range of tкп / СВА values of 3.02–4.00 the additives have universal depressant properties. A correlation was established between the refractive index nD100 of additives and the complex value tкп / СВА (R2 = 0.975).
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Mastur, Mastur, Utis Sutisna, Bambang Sugiantoro, Nana Supriyana, and Warso Warso. "TEKNOLOGI PENJERNIHAN MINYAK PIROLISIS PLASTIK DENGAN METODE ULTRAFILTRASI BERBASIS TEKANAN VACUUM KAPASITAS 50 LITER/JAM." JMM (Jurnal Masyarakat Mandiri) 8, no. 6 (2024): 6094. https://doi.org/10.31764/jmm.v8i6.26892.
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Abstrak: Desa Panican merupakan salah satu desa yang berkomitmen untuk pengelolaan sampah mandiri khususnya sampah plastik dengan sistem barter dengan masyarakat untuk bahan proses pirolsisis dengan kapasitas 50 kg/proses. Unit ini dikelola oleh kelompok swadaya masyarakat (KSM) Bangun Utomo. Hasil minyak pirolisis berupa minyak setara solar 60%, 20 % setara minyak tanah dan 20% setara premium. Proses penjernihan selama ini menggunakan proses mixing dengan NaOH dan metanol yang diaduk mengggunakan mixer elektrik, tetapi hasil masih keruh dan banyak mengandung partikel, proses pemisahan minyak masih menggunakan tahapan pengendapan selama 2 hari, sehingga menghambat proses produksi. Untuk meningkatkan kejernihan membutuhkan prosesiltrasi membran yang cepat. Teknologi yang diterapkan menggabungkan filtrasi membran dan vacuum dalam satu proses dengan daya listrik yang rendah yaitu 250 watt. Peningkatan pengetahuan dilaksanakan dengan workshop 8 orang operator untuk memahami sistem operasi, fungsi komponen dan pemeliharaan. Minyak pirolisis, terutama fraksi solar yang mencakup 60% dari hasil produksi, menawarkan potensi pasar yang besar sebagai bahan bakar alternatif untuk mesin diesel di sektor pertanian dan industri kecil, Dengan harga jual Rp. 8000 per liter, produk ini mampu memenuhi 40% kebutuhan energi murah di desa ini. Selain itu, peningkatan harga sebesar 15% per liter meningkatkan pendapatan mitra, untuk mendukung pemasaran dilakukan pelatihan penjualan sebanyak 4 orang yang bertugas sebagai admin baik lokal maupun online. evaluasi berupa observasi performasi mesin sesuai jenis plastik menunjukkan bahwa penggunaan solar pirolisis lebih hemat dibandingkan biosolar, dengan efisiensi 5,5% pada mesin traktor, 7,23% pada mesin pemilah sampah, dan 6,5% pada mesin pencacah plastik. Fraksi minyak setara bensin dan minyak tanah dimanfaatkan untuk produksi thinner. Keberhasilan teknologi ini memberikan peluang signifikan produksi energi alternatif yang hemat biaya dan berkelanjutan, serta meningkatkan kesejahteraan ekonomi bagi mitra melalui penguatan pasar dan pendapatan.Abstract: The village of Panican is committed to independent waste management, particularly plastic waste, using a barter system with the community to gather raw materials for pyrolysis with a capacity of 50 kg per process. This unit is managed by the community self-help group (KSM) Bangun Utomo. The resulting pyrolysis oil includes diesel-equivalent oil at 60%, 20% kerosene-equivalent, and 20% gasoline-equivalent. The purification process has traditionally relied on mixing with NaOH and methanol, stirred by an electric mixer; however, the oil remains cloudy and contains numerous particulates. Oil separation still uses a two-day settling process, which slows down production. To improve clarity, a rapid membrane filtration process is needed. The technology implemented combines membrane filtration and vacuum in a single process with low electrical power, requiring only 250 watts. Knowledge enhancement was conducted through a workshop for eight operators to understand operational systems, component functions, and maintenance procedures. Pyrolysis oil, particularly the diesel fraction which comprises 60% of the production yield, offers significant market potential as an alternative fuel for diesel engines in agriculture and small industries. With a selling price of IDR 8,000 per liter, this product can fulfill 40% of the village’s demand for low-cost energy. Additionally, a 15% price increase per liter enhances partner income, and product marketing support is provided through training in local and online sales. An evaluation through machine performance observation, based on the type of plastic used, showed that pyrolysis diesel was more efficient than biodiesel, yielding 5.5% efficiency on tractors, 7.23% on waste sorting machines, and 6.5% on plastic shredders. Gasoline and kerosene-equivalent fractions are utilized for thinner production. The success of this technology offers a significant opportunity for the production of cost-effective, sustainable alternative energy, while enhancing economic well-being for partners through strengthened markets and increased revenue.
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Amaral, Anderson Rocha, Lucas Pinto Bernar, Caio Campos Ferreira, et al. "Economic Analysis of Thermal–Catalytic Process of Palm Oil (Elaeis guineesensis, Jacq) and Soap Phase Residue from Neutralization Process of Palm Oil (Elaeis guineensis, Jacq)." Energies 16, no. 1 (2023): 492. http://dx.doi.org/10.3390/en16010492.
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Palm oil is, from an economic, environmental, and social point of view, a vegetable oil with great potential and the state of Pará-Brazil is Brazil’s great producer. In addition, soap phase residue or palm oil neutralization sludge (PONS), a byproduct of the neutralization step of the chemical refinement of palm oil, is produced, posing a huge problem for waste disposal and management in the production process of refined palm oil (RPO). In this context, this work aims to systematically investigate the economic analysis of the thermal–catalytic process of crude palm oil (CPO) and palm oil neutralization sludge (PONS). The thermocatalytic processes of CPO and PONS carried out at pilot scale and their economic feasibility were analyzed. The yields of biofuels produced by fractional distillation were also presented. The physicochemical properties of CPO and PONS, as well as those of organic liquid products obtained by the thermal–catalytic process of CPO and PONS were taken into account in the economic analysis. In addition, the chemical composition organic liquid products obtained by thermal–catalytic process of CPO and PONS, as well as its distillation fractions (green gasoline, green kerosene, green light diesel and heavy diesel), used as key factors/indicators on the economic analysis. The analysis of the key factors/indicators from the thermocatalytic processes of CPO and PONS showed economic viability for both crude palm oil (Elaeis guineensis, Jacq) and palm oil neutralization sludge. The minimum fuel selling price (MFSP) obtained in this work for the biofuels was 1.59 USD/L using crude palm oil (CPO) and 1.34 USD/L using palm oil neutralization sludge (PONS). The best breakeven point obtained was of 1.24 USD/L considering the PONS. The sensibility analysis demonstrated that the pyrolysis and distillation yields are the most important variables that affect the minimum fuel-selling price (MFSP) in both economic analyses.
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Vasilieva, Elena, Aleksandr Nevedrov, Andrey Papin, and Aleksandr Chernik. "The Study of the Distillation Volume of the Liquid Tire Pyrolysis Product." E3S Web of Conferences 174 (2020): 02019. http://dx.doi.org/10.1051/e3sconf/202017402019.
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At present, the disposal of polymer and rubber waste, and especially automobile tires, is one of the most acute environmental problems. These types of waste pollute the environment both when they are stored at landfills and during subsequent disposal, especially if it is carried out in the form of incineration. Therefore, at present, much attention is paid to thermal methods of their processing. The results of the study of liquid product of pyrolysis of tires of Kuznetskecology+ LLC are presented in the work. During its distillation, the following fractures were obtained (the yield wt% is indicated in parentheses): petroleum (4), gasoline (21), kerosene (18), diesel (47), fuel oil (10), for which the refractive index was determined and a conclusion about their chemical composition was drawn. When analyzing the data obtained during the analysis of liquid pyrolysis product and its fractions, as well as on the basis of published data, possible chemical reactions occurring during vulcanized rubber pyrolysis are proposed. Research results show that pyrolysis products are valuable chemical raw materials that have great prospects for industrial use, including the production of synthetic motor fuels.
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Zhuravski, G. I. "Technology and equipment for processing of secondary hydrocarbons." Proceedings of the National Academy of Sciences of Belarus, Physical-Technical Series 64, no. 1 (2019): 81–86. http://dx.doi.org/10.29235/1561-8358-2019-64-1-81-86.
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The concept of “steam thermolysis”, specifically, the use of overheated water steam as an effective coolant and inert medium to reduce the formation of environmentally hazardous compounds in the process of thermochemical decomposition of organic waste and to have the possibility of obtaining valuable end products that can be certified as fuels, fuel additives, raw materials and components for certain products, is grounded. Based on the study of decomposition of organic waste in a superheated water steam environment, a thermochemical technology for processing of hydrocarbon-containing raw materials has been developed.To implement the technology of processing hydrocarbon-containing raw materials, it is necessary to heat the raw material up to the specified temperature, maintain the raw material at this temperature for the time required for complete removal of hydrocarbons and water, to cool and condense the steam-gas products, and to cool the solid products. All these processes (heating, holding at a given temperature, cooling, condensation) are associated with the supply of energy (heating and soaking) and energy removal (condensation and cooling of products). On the basis of the law of conservation of energy, the heat transfer equation is formulated and its solution is computed, which makes it possible to calculate the necessary time for the complete course of the thermal decomposition of hydrocarbons.The new technology is instrumentally designed as a line for processing of oil-containing waste, installed on the territory of the company Industrial-transport corporation LLC (Angarsk, Russia). With the help of this equipment, it was proved experimentally under experimental industrial conditions, that as a result of steam thermolysis of oil sludges, the formation of a gasoline fraction occurs, the content of kerosene and diesel fractions increases, and the content of the black oil fraction decreases significantly.
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Khagani Hasanov, Elchin Malikov, Khagani Hasanov, Elchin Malikov. "INCREASING THE EXTRACTION OF VACUUM GAS OIL AT THE ELOU-AVT UNIT." PAHTEI-Procedings of Azerbaijan High Technical Educational Institutions 35, no. 12 (2023): 251–57. http://dx.doi.org/10.36962/pahtei35122023-251.
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The ELOU-AVT unit is part of a large oil refining complex. This unit is designed for primary processing of oils from various fields, as well as their mixtures. Refining is carried out in order to separate oil into separate fractions (gasoline, kerosene, diesel fuel, fuel oil), which are used as raw materials for secondary oil refining at other units. On the territory of modern refineries, in order to increase the depth of processing of petroleum feedstock, in most cases the following technological units are used: – The isomerization unit is designed for the production of low-boiling high-octane isomerizate used as a component of unleaded motor gasolines. For the production of a low-boiling high-octane component, the plant uses the process of low-temperature isomerization of C5-C6 normal paraffins. – The distillate hydrotreating unit is designed to produce high-quality diesel fuel with low sulfur and nitrogen content, high cetane number, and improved low-temperature properties. – The sulfur production unit is designed to produce solid commercial sulfur by the oxidative conversion of hydrogen sulfide into elemental sulfur. The delayed coking unit is designed to process heavy oil residues (straight-run tar) into lighter gaseous, liquid products and petroleum coke. The process of thermal cracking is the basis for the processing of tar. – The catalytic reformer with preliminary hydrotreatment is designed for the processing of gasoline fractions of oil in order to obtain high-quality gasolines and aromatic hydrocarbons, as well as hydrogen-containing gas (HCG), which is widely used both in petrochemistry and in such oil refining processes as: hydrotreating, hydrocracking, isomerization, etc. Oil refining is a multi-stage process of physical and chemical processing of crude oil, which results in the production of a complex of petroleum products. Industrial primary distillation units are divided into atmospheric (AT), vacuum (VT) and combined (for example, AVT, CDU-AVT, etc.). It is impossible to obtain a single marketable oil product from crude oil directly by one process (with the exception of gases), all of them are obtained by sequential processing at several installations. Keywords: ELOU-AVT machine, distillate hydrotreating unit, Oil refining, multi-stage process, primary distillation units
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Hissa, Michaela, Seppo Niemi, Katriina Sirviö, Antti Niemi, and Teemu Ovaska. "Combustion Studies of a Non-Road Diesel Engine with Several Alternative Liquid Fuels." Energies 12, no. 12 (2019): 2447. http://dx.doi.org/10.3390/en12122447.
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Sustainable liquid fuels will be needed for decades to fulfil the world’s growing energy demands. Combustion systems must be able to operate with a variety of renewable and sustainable fuels. This study focused on how the use of various alternative fuels affects combustion, especially in-cylinder combustion. The study investigated light fuel oil (LFO) and six alternative liquid fuels in a high-speed, compression-ignition (CI) engine to understand their combustion properties. The fuels were LFO (baseline), marine gas oil (MGO), kerosene, rapeseed methyl ester (RME), renewable diesel (HVO), renewable wood-based naphtha and its blend with LFO. The heat release rate (HRR), mass fraction burned (MFB) and combustion duration (CD) were determined at an intermediate speed at three loads. The combustion parameters seemed to be very similar with all studied fuels. The HRR curve was slightly delayed with RME at the highest load. The combustion duration of neat naphtha decreased compared to LFO as the engine load was reduced. The MFB values of 50% and 90% occurred earlier with neat renewable naphtha than with other fuels. It was concluded that with the exception of renewable naphtha, all investigated alternative fuels can be used in the non-road engine without modifications.
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Glushkov, Dmitrii O., Genii V. Kuznetsov, and Pavel A. Strizhak. "Numerical and Experimental Research of Heat and Mass Transfer at the Heterogeneous System Ignition by Local Energy Source with Limited Heat Content." Mathematical Problems in Engineering 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/281527.
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Numerical and experimental investigations were executed for determination of macroscopic regularities of heat and mass transfer processes under the conditions of the phase transformations and chemical reaction at the ignition of vapors coming from fabrics impregnated by combustible liquid into oxidant area at the local power supply. It was established that initial temperatureΘp>1of local energy source and volume fractionφ>30%of combustible liquid vapors in fabric are necessary for realization of ignition conditions in a system “fabric—combustible liquid—oxidant.”. Thus three ignition modes are possible for such system. The most widespread mode is an arrangement of ignition zone near the lateral side of local energy source. Also we obtained approximating expressions of ignition delay time on initial temperature and characteristic size of a local energy source for fabrics impregnated by some kinds of combustible liquids (gasoline, kerosene, and diesel fuel). Its dependences may be useful at engineering calculations of fire danger for processes of single hot particles interaction with liquid combustible substances.
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Рыбаков, Юрий Николаевич, Александр Васильевич Дедов, Роман Игоревич Кюннап, and Сергей Владимирович Ларионов. "Study of the permeability of fluorinated high-pressure polyethylene for temporary fuel storage." SCIENCE & TECHNOLOGIES OIL AND OIL PRODUCTS PIPELINE TRANSPORTATION, no. 1 (February 28, 2021): 65–69. http://dx.doi.org/10.28999/2541-9595-2021-11-1-65-69.
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Исследована проницаемость фторированного полиэтилена высокого давления (ПВД), предназначенного для изготовления ремонтных и технологических вкладышей резервуаров складов временного хранения топлива. Использование таких вкладышей позволяет снизить технологические потери углеводородов и увеличить надежность хранилищ из полимерных материалов. В качестве объекта исследования использовали пленки ПВД 10204-003 толщиной 100 мкм. Проницаемость пленок определяли при контакте с бензином марок Нормаль-80, Премиум-95, авиационным керосином ТС-1 и дизельным топливом. Рассмотрен механизм формирования структуры поверхностного фторированного слоя. Исследована кинетика изменения коэффициента проницаемости исходного и модифицированного полиэтилена в течение возможного срока хранения топлив. По результатам исследования установлено: 1) в полиэтилене перенос топлива протекает в две стадии, что определяется раздельной диффузией низкомолекулярных и высокомолекулярных фракций углеводородов; 2) фторирование полиэтилена приводит к уменьшению коэффициента проницаемости (что имеет практическое значение для сохранения качества топлива), но не влияет на перенос фракции углеводородов минимальной молекулярной массы. The permeability of fluorinated high-pressure polyethylene (HDPE), intended for the manufacture of repair and technological liners of tanks for temporary fuel storage has been investigated. As the object of research, 10204-003 HDPE films with 100 μm thickness were used. The permeability of the films was determined by contact with gasoline of the Normal-80 and Premium-95 brands, aviation kerosene TS-1, and diesel fuel. The formation mechanism of the surface fluorinated layer structure was considered. The kinetics of changes in the permeability coefficient of the original and modified polyethylene during the possible fuel storage period has been studied. It has been established that the transfer of fuel in polyethylene proceeds in two stages, which is determined by the separate diffusion of low-molecular and high-molecular hydrocarbon fractions. Fluoridation of polyethylene decreases the permeability coefficient, but does not affect the transfer of hydrocarbon fraction with the minimum molecular weight.