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Journal articles on the topic 'Olefins Pyrolysis'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Садыгов Ф. М., Магеррамова З. Ю., Гаджиев Г. Н., Гасан-заде Г. Г., Мамедова И. Г. та Меликова Э. Т. "ВЛИЯНИЕ ТЕХНОЛОГИЧЕСКОГО РЕЖИМА УСТАНОВКИ ТЕРМИЧЕСКОГО ПИРОЛИЗА УГЛЕВОДОРОДОВ НА КАЧЕСТВЕННЫЙ СОСТАВ ТЯЖЁЛОЙ СМОЛЫ". World Science 1, № 1(41) (2019): 29–35. http://dx.doi.org/10.31435/rsglobal_ws/31012019/6295.

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    The dependence of the yield and composition of the heavy pyrolysis resin on the initial hydrocarbon feedstock and the process conditions is investigated. The variation of technological parameters within certain limits leads to a change in the content of low molecular weight olefins in the gaseous pyrolysis products, as well as the qualitative and quantitative composition of by-product liquid products. As a result of the research, the optimum process conditions for the pyrolysis of straight-run gasoline were determined, which, with the maximum conversion of hydrocarb

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Setiadi, Jayusandi Mulya Sentosa, and Joshua Jesse Karubaba. "The combined process of pyrolysis and catalytic conversion from rice straw toward light olefin hydrocarbon with supported metal catalyst." E3S Web of Conferences 67 (2018): 02025. http://dx.doi.org/10.1051/e3sconf/20186702025.

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Light olefins are one of the most common petrochemical raw materials produced using non-renewable natural resources. Nowadays, lignocellulosic biomass is a promising source of feedstock ingredients for the production of olefins by pyrolysis. This study, the process is developed by a combination of pyrolysis and catalytic cracking processes with operating temperature around 500°C and N2 flow rate around 150 ml/min. The supported metal catalyst namely La/Al2O3 and Zn/Al2O3 made with the impregnation method are used as catalysts. The catalytic pyrolysis process was carried out in a fixed bed turb

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3

Feng, Guo Qiang, Shuang Chen, Lei Han, and Di Zhang. "Influence of Different Temperature on Product Distribution Law of Waste Oil Steam Cracking." Applied Mechanics and Materials 713-715 (January 2015): 2714–18. http://dx.doi.org/10.4028/www.scientific.net/amm.713-715.2714.

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Waste oil as raw material, study the possibility of waste oil steam cracking to produce light olefins, and focus on pyrolysis temperature on liquid product distribution law. The experimental results show that light olefins yield increases with the pyrolysis temperature; Waste oil first ester fault occurs for a variety of long-chain fatty acids. As temperature increases, the various fatty acids gradually pyrolysis of a variety of small molecules, and its acid value decreased, aromatic compounds in liquid products gradually increased, and fatty acid content decreased. Study the liquid product wi

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4

Yang, Bin, and Ming Chen. "Py–FTIR–GC/MS Analysis of Volatile Products of Automobile Shredder Residue Pyrolysis." Polymers 12, no. 11 (2020): 2734. http://dx.doi.org/10.3390/polym12112734.

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Automobile shredder residue (ASR) pyrolysis produces solid, liquid, and gaseous products, particularly pyrolysis oil and gas, which could be used as renewable alternative energy resources. Due to the primary pyrolysis reaction not being complete, the yield of gaseous product is low. The pyrolysis tar comprises chemically unstable volatiles before condensing into liquid. Understanding the characteristics of volatile products will aid the design and improvement of subsequent processes. In order to accurately analyze the chemical characteristics and yields of volatile products of ASR primary pyro

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5

Murugappan, Karthick, Calvin Mukarakate, Sridhar Budhi, Manish Shetty, Mark R. Nimlos, and Yuriy Román-Leshkov. "Supported molybdenum oxides as effective catalysts for the catalytic fast pyrolysis of lignocellulosic biomass." Green Chemistry 18, no. 20 (2016): 5548–57. http://dx.doi.org/10.1039/c6gc01189f.

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6

Dao Thi, Hang, Marko R. Djokic, and Kevin M. Van Geem. "Detailed Group-Type Characterization of Plastic-Waste Pyrolysis Oils: By Comprehensive Two-Dimensional Gas Chromatography Including Linear, Branched, and Di-Olefins." Separations 8, no. 7 (2021): 103. http://dx.doi.org/10.3390/separations8070103.

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Plastic-waste pyrolysis oils contain large amounts of linear, branched, and di-olefinic compounds. This makes it not obvious to determine the detailed group-type composition in particular to the presence of substantial amounts of N-, S-, and O-containing heteroatomic compounds. The thorough evaluation of different column combinations for two-dimensional gas chromatography (GC × GC), i.e., non-polar × polar and polar × non-polar, revealed that the second combination had the best performance, as indicated by the bi-dimensional resolution of the selected key compounds. By coupling the GC × GC to

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7

Magaril, E. R., R. Z. Magaril, and L. V. Trushkova. "PERFECTION OF THE PYROLYSIS PROCESS." Oil and Gas Studies, no. 5 (November 1, 2017): 113–17. http://dx.doi.org/10.31660/0445-0108-2017-5-113-117.

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There were obtained the values of the relative reactivity of different types of bonds in interaction with hydrogen atoms, methyl radicals, as well as values of the effective relative reactivity when using an inert diluent, enabling to improve knowledge about the pyrolysis of raw materials of a given composition. A method was developed for increasing the selectivity of the pyrolysis for the desired products of the process (lower olefins), reducing the yield of liquid products of condensation and specific energy consumption, based on the influence of hydrogen on the thermal reactions of alkanes

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8

Qiu, Qi, and Yiting Zhang. "Pyrolysis-Gas Chromatography/Mass Spectrometry Analysis of Oils from Different Sources." Trends in Renewable Energy 7, no. 1 (2021): 53–72. http://dx.doi.org/10.17737/tre.2021.7.1.00127.

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Regenerated gutter oil (i.e., waste oil) accounts for 10% of the edible oil market, which has caused serious food safety issues. Currently, there is no standard protocol for the identification of the gutter oil. In this study, the pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) method was employed to analyze eleven oil samples including edible vegetable oils (tea oil, corn oil, olive oil, sunflower oil, peanut oil and blend vegetable oil) and waste oils (used frying oil, lard, chicken fat, inferior oil and kitchen waste grease). Three factors of pyrolysis temperature, reaction time a

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9

Magaril, E. R., and R. Z. Magaril. "ENHANCEMENT OF THE HYDROCARBONS PYROLYSIS SELECTIVITY." Oil and Gas Studies, no. 4 (September 1, 2017): 121–25. http://dx.doi.org/10.31660/0445-0108-2017-4-121-125.

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Data was obtained on relative reactivity for different type bonds in reactions with hydrogen atoms, methyl radicals, and also on effective relative reactivities when using an inert diluent, allowing deepening the knowledge about pyrolysis of raw materials of a given composition. A method has been developed for increasing selectivity of process for target products (lower olefins), lowering yields of liquid products of condensation and specific energy expenditure, based on influence of hydrogen on thermic reactions of alkanes and alkenes.

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10

Corey, E. J., Gary H. Posner, Richard F. Atkinson, et al. "Formation of olefins via pyrolysis of sulfonate esters." Journal of Organic Chemistry 54, no. 2 (1989): 389–93. http://dx.doi.org/10.1021/jo00263a024.

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11

Simon, C. M., W. Kaminsky, and B. Schlesselmann. "Pyrolysis of polyolefins with steam to yield olefins." Journal of Analytical and Applied Pyrolysis 38, no. 1-2 (1996): 75–87. http://dx.doi.org/10.1016/s0165-2370(96)00950-3.

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12

Kaminsky, W., B. Schlesselmann, and C. Simon. "Olefins from polyolefins and mixed plastics by pyrolysis." Journal of Analytical and Applied Pyrolysis 32 (April 1995): 19–27. http://dx.doi.org/10.1016/0165-2370(94)00830-t.

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13

Zhao, Ying Xian. "Selectivity Patterns of Radical Reactions in 1-Hexene Pyrolysis." Advanced Materials Research 391-392 (December 2011): 1406–11. http://dx.doi.org/10.4028/www.scientific.net/amr.391-392.1406.

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The pyrolysis of 1-hexene at 873 K was investigated. Primary products include C1-C4 paraffins, C2-C4 olefins, butadiene, pentadiene, cyclopentane, cyclopentene, coke and hydrogen. A chain reaction mechanism was developed to interpret the distribution of products, and the quantitative analysis on the selectivity patterns of radical reactions was presented.

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14

Li, Cheng, Xiaochen Yue, Jun Yang, Yafeng Yang, Haiping Gu, and Wanxi Peng. "Catalytic Fast Pyrolysis of Forestry Wood Waste for Bio-Energy Recovery Using Nano-Catalysts." Energies 12, no. 20 (2019): 3972. http://dx.doi.org/10.3390/en12203972.

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Fast pyrolysis is envisioned as a promising technology for the utilization of forestry wood waste (e.g., widely available from tree logging) as resources. In this study, the potential of an innovative approach was explored to convert forestry wood waste of Vernicia fordii (VF) into energy products based on fast pyrolysis combined with nano-catalysts. The results from fast pyrolysis using three types of nano-catalysts showed that the distribution and composition of the pyrolytic product were affected greatly by the type of nano-catalyst employed. The use of nano-Fe2O3 and nano-NiO resulted in y

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15

Kang, In Yong, Hans Heinrich Carstensen, and Anthony M. Dean. "Impact of Gas-Phase Reactions on SOFC Systems Operating on Diesel and Biomass-Derived Fuels." Materials Science Forum 638-642 (January 2010): 1118–24. http://dx.doi.org/10.4028/www.scientific.net/msf.638-642.1118.

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The use of diesel fuel to power a solid oxide fuel cell (SOFC) presents several challenges. A major issue is deposit formation in either the external reformer, the anode channel, or within the SOFC anode itself. These deposits are generally poly-aromatic hydrocarbons (PAHs) produced either by gas-phase pyrolysis of the fuel or by catalytic reactions. In this report we describe n-hexane and ethylene pyrolysis experiments under conditions relevant to reformer or SOFC operation (τ=~1s, T=550~900°C, P~0.8 atm) to explore the potential for gas-phase reactions to produce deposit precursors. N-hexane

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16

Qiu, Qi, Yingen Cai, Qiuling Ye, and Weizhong Lv. "Catalytic Pyrolysis of Kapok Fiber for Production of Olefins." Trends in Renewable Energy 5, no. 2 (2019): 218–28. http://dx.doi.org/10.17737/tre.2019.5.2.0097.

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17

Zhang, Rui, Zhixi Wang, Haiyan Liu, Zhichang Liu, Guili Liu, and Xianghai Meng. "Thermodynamic equilibrium distribution of light olefins in catalytic pyrolysis." Applied Catalysis A: General 522 (July 2016): 165–71. http://dx.doi.org/10.1016/j.apcata.2016.05.009.

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18

Sivriu, Ana Maria, Claudia-Irina Koncsag, Alina-Monica Mares, Roxana Tirpan, Olga Sapunaru, and Gheorghita Jinescu. "OLEFINS AND FUELS FROM FRYING PALM OIL THROUGH PYROLYSIS." Environmental Engineering and Management Journal 19, no. 2 (2020): 345–52. http://dx.doi.org/10.30638/eemj.2020.032.

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19

Vallada, Douglas Da Silva, Carlos Alberto Mendes Moraes, and Paulo Ricardo Santos da Silva. "Thermal pyrolysis of LDPE and LLDPE films in post-consumer packaging." Revista Eletrônica em Gestão, Educação e Tecnologia Ambiental 24 (December 4, 2020): e23. http://dx.doi.org/10.5902/2236117062698.

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Thermoplastics are increasingly present in the daily life of society in the most varied applications. Among the thermoplastics, polyethylene is the one that presents the higher volume of worldwide production and consumption. However, a large part of its applications are for products with a short shelf life, especially the food packaging sector. This way, they become expressive constituents in the composition of urban solid waste, leading to large quantities often being deposited in landfills. Pyrolysis appears as a technology for recycling plastic waste, allowing the recovery of the monomers t

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20

Gou, Jinsheng, Zhuopeng Wang, Chao Li, et al. "The effects of ZSM-5 mesoporosity and morphology on the catalytic fast pyrolysis of furan." Green Chemistry 19, no. 15 (2017): 3549–57. http://dx.doi.org/10.1039/c7gc01395g.

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21

Takht Ravanchi, Maryam, Saeed Sahebdelfar, and Samane Komeili. "Acetylene selective hydrogenation: a technical review on catalytic aspects." Reviews in Chemical Engineering 34, no. 2 (2018): 215–37. http://dx.doi.org/10.1515/revce-2016-0036.

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AbstractThe catalytic selective hydrogenation of multiunsaturated hydrocarbons, especially in pyrolysis products, to corresponding mono-olefins is a widely exploited way for the large-scale production of polymer-grade olefins as well as fuel upgrading. Thermodynamic and/or kinetic parameters could be effective for selective operation. The latter is primarily influenced by catalyst formulation, including promoters, support type, and metal dispersion and distribution. The solution to achieve an economically attractive commercial implementation lies in defining the optimal catalyst design and ope

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22

Meng, Xianghai, Chunming Xu, and Jinsen Gao. "Production of Light Olefins by Catalytic Pyrolysis of Heavy Oil." Petroleum Science and Technology 24, no. 3-4 (2006): 413–22. http://dx.doi.org/10.1080/10916460500281090.

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23

Funazukuri, T., R. R. Hudgins, and P. L. Silveston. "Production of olefins from flash pyrolysis of cellulose-containing material." Journal of Analytical and Applied Pyrolysis 17, no. 1 (1989): 47–66. http://dx.doi.org/10.1016/0165-2370(89)85005-3.

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24

Zhang, Bo, Zhaoping Zhong, Qinglong Xie, Paul Chen, and Roger Ruan. "Reducing coke formation in the catalytic fast pyrolysis of bio-derived furan with surface modified HZSM-5 catalysts." RSC Advances 5, no. 69 (2015): 56286–92. http://dx.doi.org/10.1039/c5ra08827e.

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25

Susanto, Bambang Heru, Muhammad Nasikin, Ayuko Cheeryo Sinaga, and F. Fransisca. "Synthesis of diesel-like hydrocarbon from Jatropha oil through catalytic pyrolysis." Jurnal Teknik Kimia Indonesia 11, no. 1 (2018): 50. http://dx.doi.org/10.5614/jtki.2012.11.1.7.

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Due to economical, social and ecological reason, several studies have been done in order to obtain alternative fuel sources. In this respect, fermentation, trans-esterification and pyrolysis if biomass have been proposed as alternative solutions. Among these different approaches, pyrolysis seems to be a simple and efficient method fuel production. Pyrolysis, assisted by solid catalysts, has also been reported and it was recognized that the product selectivity is strongly affected by the presence and the nature of heterogeneous catalysts. The catalytic pyrolysis of straight Jathropha curcas oil

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26

Gwyn, John E. "“Universal” yield models for the steam pyrolysis of hydrocarbons to olefins." Fuel Processing Technology 70, no. 1 (2001): 1–7. http://dx.doi.org/10.1016/s0378-3820(00)00149-1.

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27

Deng, R., F. Wei, Y. Jin, Q. Zhang, and Y. Jin. "Downer Catalytic Pyrolysis (DCP): A Novel Process for Light Olefins Production." Chemical Engineering & Technology 25, no. 7 (2002): 711. http://dx.doi.org/10.1002/1521-4125(20020709)25:7<711::aid-ceat711>3.0.co;2-a.

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28

Khasanov, R. G., and F. R. Murtazin. "Prediction of Yields of Lower Olefins during Pyrolysis of Hydrocarbon Feedstock." Chemistry and Technology of Fuels and Oils 56, no. 3 (2020): 341–46. http://dx.doi.org/10.1007/s10553-020-01143-5.

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29

Fairuzov, Danis, Ilias Gerzeliev, Anton Maximov, and Evgeny Naranov. "Catalytic Dehydrogenation of Ethane: A Mini Review of Recent Advances and Perspective of Chemical Looping Technology." Catalysts 11, no. 7 (2021): 833. http://dx.doi.org/10.3390/catal11070833.

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Dehydrogenation processes play an important role in the petrochemical industry. High selectivity towards olefins is usually hindered by numerous side reactions in a conventional cracking/pyrolysis technology. Herein, we show recent studies devoted to selective ethylene production via oxidative and non-oxidative reactions. This review summarizes the progress that has been achieved with ethane conversion in terms of the process effectivity. Briefly, steam cracking, catalytic dehydrogenation, oxidative dehydrogenation (with CO2/O2), membrane technology, and chemical looping are reviewed.

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30

Liu, Xiaoyang, Haodan Pan, Chuang Guo, Xiaojing Di, and Hongxiang Hu. "Effect of Double Transition Metal Salt Catalyst on Fushun Oil Shale Pyrolysis." Scanning 2020 (November 4, 2020): 1–14. http://dx.doi.org/10.1155/2020/6685299.

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Shale ash (SA) as the carrier, the ratio of Cu to Ni in the Cu-Ni transition metal salt being, respectively, 1 : 0, 2 : 1, 1 : 1, 1 : 2, 0 : 1, the double transition metal salt catalyst (CumNin/SA) was prepared to explore the effect of such catalysts on the pyrolysis behavior and characteristics of Fushun OS. The research results show that the temperature ( T max ) corresponding to the maximum weight loss rate decreased by 12.9°C, 4.0°C, and 3.6°C; and the apparent activation energy decreased by 35.2%, 33.9%, and 29.6%, respectively, after adding catalysts Cu0Ni1/SA in pyrolysis. The addition

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Fu, Ruru, Zhuangzhang He, Shikai Qin та ін. "Light olefin production using the mixture of HZSM-5/MCM-41 and γ-Al2O3 as catalysts for catalytic pyrolysis of waste tires". Chemical Industry and Chemical Engineering Quarterly, № 00 (2020): 25. http://dx.doi.org/10.2298/ciceq200302025f.

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In this paper, micro-mesoporous HZSM-5/MCM-41 zeolites were prepared by a two-step hydrothermal method using commercial HZSM-5 with two different silica/alumina ratios (38 and 50) as starting materials. The structures, morphologies and acidity of as-prepared zeolites were analyzed using XRD, FT-IR, SEM, N2-adsorption/desorption and NH3-TPD. The HZSM-5/MCM-41 zeolites combined the acidity of microporous HZSM-5 with the pore advantages of mesoporous MCM-41. Mesopores and microspores of 3.34 and 0.95 nm in diameter were found to be present in HZSM-5/MCM-41 zeolites. When they were used to catalyz

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Papari, Sadegh, Hanieh Bamdad, and Franco Berruti. "Pyrolytic Conversion of Plastic Waste to Value-Added Products and Fuels: A Review." Materials 14, no. 10 (2021): 2586. http://dx.doi.org/10.3390/ma14102586.

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Plastic production has been rapidly growing across the world and, at the end of their use, many of the plastic products become waste disposed of in landfills or dispersed, causing serious environmental and health issues. From a sustainability point of view, the conversion of plastic waste to fuels or, better yet, to individual monomers, leads to a much greener waste management compared to landfill disposal. In this paper, we systematically review the potential of pyrolysis as an effective thermochemical conversion method for the valorization of plastic waste. Different pyrolysis types, along w

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Dũng, Nguyễn Anh, Raweewan Klaewkla, Sujitra Wongkasemjit, and Sirirat Jitkarnka. "Light olefins and light oil production from catalytic pyrolysis of waste tire." Journal of Analytical and Applied Pyrolysis 86, no. 2 (2009): 281–86. http://dx.doi.org/10.1016/j.jaap.2009.07.006.

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34

Davidson, Stephen D., Juan A. Lopez-Ruiz, Matthew Flake, et al. "Cleanup and Conversion of Biomass Liquefaction Aqueous Phase to C3–C5 Olefins over ZnxZryOz Catalyst." Catalysts 9, no. 11 (2019): 923. http://dx.doi.org/10.3390/catal9110923.

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The viability of using a ZnxZryOz mixed oxide catalyst for the direct production of C4 olefins from the aqueous phase derived from three different bio-oils was explored. The aqueous phases derived from (i) hydrothermal liquefaction of corn stover, (ii) fluidized bed fast pyrolysis of horse litter, and (iii) screw pyrolysis of wood pellets were evaluated as feedstocks. While exact compositions vary, the primary constituents for each feedstock are acetic acid and propionic acid. Continuous processing, based on liquid–liquid extraction, for the cleanup of the inorganic contaminants contained in t

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35

Amornraksa, Suksun, and Thanida Sritangthong. "Microwave-Assisted Pyrolysis of Fuel Oil for Hydrocarbons Upgrading." E3S Web of Conferences 141 (2020): 01013. http://dx.doi.org/10.1051/e3sconf/202014101013.

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By-product upgrading is crucial in hydrocarbon processing industries as it can increase the competitiveness of the business. This research investigated opportunity to upgrade fuel oil by-product obtained from olefins production by using microwave pyrolysis. A lab-scale quartz reactor filled with placed inside a 1,200 watts household microwave oven was used for the experiments. Coconut-based activated carbon was used as a microwave receptor. Microwave powers were varied at 600 W, 840 W and 1,200 W to adjust cracking temperature between 800°C and 900°C. The effect of residence time was investiga

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Stanke, Agija, Valdis Kampars, and Kristine Lazdovica. "Synthesis, Characterization and Catalytical Effects of Fe Contents on Pyrolysis of Cellulose with Fe2O3/SBA-15 Catalysts." Environmental and Climate Technologies 24, no. 2 (2020): 92–102. http://dx.doi.org/10.2478/rtuect-2020-0057.

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AbstractIn this study mesoporous SBA-15 was synthesized under acidic conditions using triblock copolymer Pluronic P123 as template and tetraethyl orthosilicate as a silica source. SBA-15 was modified by different iron loading (1.8 %, 5 % and 10 %) via post-synthesis impregnation with Fe(NO3)3·9H2O. The obtained catalysts were characterized using XRD analysis, WDXRF spectroscopy and N2 adsorption-desorption analysis. Pyrolysis of cellulose with and without the catalyst was investigated using TG-FTIR. It was found that the presence of the synthesized catalysts affects formation of solid residue

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Lazdovica, Kristine, and Valdis Kampars. "Catalytic Intermediate Pyrolysis of Cellulose for Hydrocarbons Production in the Presence of Zeolites by Using TGA-FTIR Method." Key Engineering Materials 850 (June 2020): 127–32. http://dx.doi.org/10.4028/www.scientific.net/kem.850.127.

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Pyrolysis plays a vital role in biomass conversion as one of the most promising thermal conversion routes. Solid, liquid and gaseous products are obtained from biomass pyrolysis. The liquid is considered as perspective fuel; however, the direct use of bio-oil as fuel may present many difficulties due to its high viscosity, poor heating value and relative instability. This creates a significant economic barrier for production of transportation fuel by pyrolysis process. Catalytic pyrolysis has been widely used as a convenient method for the direct conversion of biomass into higher quality liqui

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Alvira, José, Idoia Hita, Elena Rodríguez, José Arandes, and Pedro Castaño. "A Data-Driven Reaction Network for the Fluid Catalytic Cracking of Waste Feeds." Processes 6, no. 12 (2018): 243. http://dx.doi.org/10.3390/pr6120243.

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Establishing a reaction network is of uttermost importance in complex catalytic processes such as fluid catalytic cracking (FCC). This step is the seed for a faithful reactor modeling and the subsequent catalyst re-design, process optimization or prediction. In this work, a dataset of 104 uncorrelated experiments, with 64 variables, was obtained in an FCC simulator using six types of feedstock (vacuum gasoil, polyethylene pyrolysis waxes, scrap tire pyrolysis oil, dissolved polyethylene and blends of the previous), 36 possible sets of conditions (varying contact time, temperature and catalyst/

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Fahima Bouarar, Omar Kaddour, Hadj Mimoun, and Nadjia Khettab. "Potential Production of Olefins in Pyrolysis of Algerian Gas Condensate Compounded with Ethane." Petroleum Chemistry 59, no. 1 (2019): 85–90. http://dx.doi.org/10.1134/s0965544119010079.

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40

Carlson, Torren R., Yu-Ting Cheng, Jungho Jae, and George W. Huber. "Production of green aromatics and olefins by catalytic fast pyrolysis of wood sawdust." Energy Environ. Sci. 4, no. 1 (2011): 145–61. http://dx.doi.org/10.1039/c0ee00341g.

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41

Zhang, Huiyan, Rui Xiao, Baosheng Jin, Guomin Xiao, and Ran Chen. "Biomass catalytic pyrolysis to produce olefins and aromatics with a physically mixed catalyst." Bioresource Technology 140 (July 2013): 256–62. http://dx.doi.org/10.1016/j.biortech.2013.04.094.

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42

Khasanov, R. G., and F. R. Murtazin. "Correction to: Prediction of Yields of Lower Olefins during Pyrolysis of Hydrocarbon Feedstock." Chemistry and Technology of Fuels and Oils 56, no. 6 (2021): 1029. http://dx.doi.org/10.1007/s10553-021-01220-3.

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43

Xanthopoulou, G., and G. Vekinis. "Catalytic Pyrolysis of Naphtha on SHS Catalysts." Eurasian Chemico-Technological Journal 12, no. 1 (2009): 17. http://dx.doi.org/10.18321/ectj21.

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High yield of light olefins by catalytic pyrolysis of naphtha on spinel-based catalysts is reported. The yields of ethylene and propylene reach over 50% and are at least 10% and 5% higher respectively than the yield using thermal Pyrolysis, under the same process conditions. The partial substitution of Mg by Co in MgAl<sub>2</sub>O<sub>4</sub> and the incorporation of Al<sub>2</sub>O<sub>3</sub>, SiO<sub>2</sub>, MgO, H<sub>3</sub>BO<sub>3</sub> in the spinel and SHS synthesis of KVO<sub>3</sub> all

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Vargas Santillán, A., J. C. Farias Sanchez, M. G. Pineda Pimentel, and A. J. Castro Montoya. "Olefins and Ethanol from Polyolefins: Analysis of Potential Chemical Recycling of Poly(ethylene) Mexican Case." International Journal of Chemical Reactor Engineering 14, no. 6 (2016): 1289–300. http://dx.doi.org/10.1515/ijcre-2015-0217.

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Abstract Plastic solid waste (PSW) presents challenges and opportunities to society regardless of their sustainability awareness and technological advances. A special emphasis is paid on waste generated from polyolefin sources, which makes up a great percentage of our daily commodities’ plastic products. In Mexico 7.6 millions of tons of plastic in 2012 were wasted, which low density polyethylene LDPE, and high density polyethylene HDPE were the most abundant. Increasing cost, and decreasing space of landfills are forcing considerations of alternative options for PSW disposal. Years of researc

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Tian, Zhipeng, Chenguang Wang, Jun Yue, Xinghua Zhang, and Longlong Ma. "Effect of a potassium promoter on the Fischer–Tropsch synthesis of light olefins over iron carbide catalysts encapsulated in graphene-like carbon." Catalysis Science & Technology 9, no. 11 (2019): 2728–41. http://dx.doi.org/10.1039/c9cy00403c.

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Kannan, Pravin, Ahmed Al Shoaibi, and C. Srinivasakannan. "Temperature Effects on the Yield of Gaseous Olefins from Waste Polyethylene via Flash Pyrolysis." Energy & Fuels 28, no. 5 (2014): 3363–66. http://dx.doi.org/10.1021/ef500516n.

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Bertini, Fabio, Guido Audisio, Jitsuo Kiji, Akio Yamada, Masayuki Hatano, and Yoshihiko Yuasa. "Characterization of co- and terpolymers of carbon monoxide and olefins by pyrolysis-gas chromatography." Journal of Analytical and Applied Pyrolysis 64, no. 2 (2002): 279–303. http://dx.doi.org/10.1016/s0165-2370(02)00038-4.

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Sejbal, Jan, Jiří Klinot, and Miloš Buděšínský. "Photolyses and pyrolyses of triterpenoid nitrites." Collection of Czechoslovak Chemical Communications 56, no. 8 (1991): 1732–43. http://dx.doi.org/10.1135/cccc19911732.

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Derivatives of 19β,28-epoxy-18α-oleanane and lupane with nitrosyloxy group in positions 1α, 2β, 3α, 3β and 28 (II, V, VIII, X and XXVII, respectively) were subjected to photolysis in solution and in the crystalline state, as well as to pyrolysis. In most cases the products identified were alcohols, ketones, olefins and seco derivatives. Photolysis of 2β-nitrile V in benzene afforded the known 24- and 25-oximino derivatives XV and XVII, photolysis of 1α-nitrite II in the crystalline state led to the little stable form XIX of N-hydroxylactam XXI which in solution was easily converted into the de

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Zhou, Guo Qiang, Wei Kun Yao, Yu Jue Wang, Yu Feng, Yan Qing Yu, and Wei Wang. "Production of Renewable Petrochemicals from Catalytic Co-Pyrolysis of Beech Wood and Low-Density Polyethylene with Mesoporous Bifunctional ZSM-5 Zeolites." Applied Mechanics and Materials 768 (June 2015): 392–401. http://dx.doi.org/10.4028/www.scientific.net/amm.768.392.

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This study investigated catalytic fast pyrolysis (CFP) of beech wood, low-density polyethylene (LDPE), and their mixture (mass ratio of 1) with a conventional microporous ZSM-5 and mesoporous bifunctional Zn/ZSM-5meso zeolite prepared by desilication of the conventional ZSM-5 with NaOH solution and then impregnation with Zn.The generation of mesopores by desilication improved the diffusion property of the zeolite, which decreased the formation of undesired polyaromatic hydrocarbons from secondary polymerization reactions of monoaromatics in CFP. In addition, the impregnation of Zn increased th

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Karaba, Adam, Jan Patera, Petra Dvorakova Ruskayova, Héctor de Paz Carmona, and Petr Zamostny. "Experimental Evaluation of Hydrotreated Vegetable Oils as Novel Feedstocks for Steam-Cracking Process." Processes 9, no. 9 (2021): 1504. http://dx.doi.org/10.3390/pr9091504.

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Hydrotreated vegetable oils (HVOs) are currently a popular renewable energy source, frequently blended into a Diesel-fuel. In the paper, HVO potential as feedstock for the steam-cracking process was investigated, since HVOs promise high yields of monomers for producing green polymers and other chemicals. Prepared HVO samples of different oil sources were studied experimentally, using pyrolysis gas chromatography to estimate their product yields in the steam-cracking process and compare them to traditional feedstocks. At 800 °C, HVOs provided significantly elevated ethylene yield, higher yield

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