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Artigos de revistas sobre o tema "Catalytic pyrolysis"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 26 de julho de 2025

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1

Wu, Zhi, Pengcheng Jiang, Hongxing Pang, et al. "Improving the Oxidation Resistance of Phenolic Resin Pyrolytic Carbons by In Situ Catalytic Formation of Carbon Nanofibers via Copper Nitrate." Materials 17, no. 15 (2024): 3770. http://dx.doi.org/10.3390/ma17153770.

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Phenolic resin pyrolytic carbons were obtained by catalytic pyrolysis of phenolic resin at 500 °C, 600 °C, 700 °C, and 800 °C for 3 h in an argon atmosphere using copper nitrate as a catalyst precursor. The effects of copper salts on the pyrolysis process of phenolic resin as well as the structural evolution and oxidation resistance of phenolic resin pyrolytic carbons were studied. The results showed that copper oxide (CuO) generated from the thermal decomposition of copper nitrate was reduced to copper (Cu) by the gas generated from the thermal decomposition of the phenolic resin. Carbon nano

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2

Lee, Nahyeon, Junghee Joo, Kun-Yi Andrew Lin, and Jechan Lee. "Waste-to-Fuels: Pyrolysis of Low-Density Polyethylene Waste in the Presence of H-ZSM-11." Polymers 13, no. 8 (2021): 1198. http://dx.doi.org/10.3390/polym13081198.

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Herein, the pyrolysis of low-density polyethylene (LDPE) scrap in the presence of a H-ZSM-11 zeolite was conducted as an effort to valorize plastic waste to fuel-range chemicals. The LDPE-derived pyrolytic gas was composed of low-molecular-weight aliphatic hydrocarbons (e.g., methane, ethane, propane, ethylene, and propylene) and hydrogen. An increase in pyrolysis temperature led to increasing the gaseous hydrocarbon yields for the pyrolysis of LDPE. Using the H-ZSM-11 catalyst in the pyrolysis of LDPE greatly enhanced the content of propylene in the pyrolytic gas because of promoted dehydroge

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3

Alagu, R. M., and E. Ganapathy Sundaram. "Experimental Studies on Thermal and Catalytic Slow Pyrolysis of Groundnut Shell to Pyrolytic Oil." Applied Mechanics and Materials 787 (August 2015): 67–71. http://dx.doi.org/10.4028/www.scientific.net/amm.787.67.

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Pyrolysis process in a fixed bed reactor was performed to derive pyrolytic oil from groundnut shell. Experiments were conducted with different operating parameters to establish optimum conditions with respect to maximum pyrolytic oil yield. Pyrolysis process was carried out without catalyst (thermal pyrolysis) and with catalyst (catalytic pyrolysis). The Kaolin is used as a catalyst for this study. The maximum pyrolytic oil yield (39%wt) was obtained at 450°C temperature for 1.18- 2.36 mm of particle size and heating rate of 60°C/min. The properties of pyrolytic oil obtained by thermal and cat

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4

AlMohamadi, Hamad, Abdulrahman Aljabri, Essam R. I. Mahmoud, Sohaib Z. Khan, Meshal S. Aljohani, and Rashid Shamsuddin. "Catalytic Pyrolysis of Municipal Solid Waste: Effects of Pyrolysis Parameters." Bulletin of Chemical Reaction Engineering & Catalysis 16, no. 2 (2021): 342–52. http://dx.doi.org/10.9767/bcrec.16.2.10499.342-352.

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Burning municipal solid waste (MSW) increases CO2, CH4, and SO2 emissions, leading to an increase in global warming, encouraging governments and researchers to search for alternatives. The pyrolysis process converts MSW to oil, gas, and char. This study investigated catalytic and noncatalytic pyrolysis of MSW to produce oil using MgO-based catalysts. The reaction temperature, catalyst loading, and catalyst support were evaluated. Magnesium oxide was supported on active carbon (AC) and Al2O3 to assess the role of support in MgO catalyst activity. The liquid yields varied from 30 to 54 wt% based

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5

Wang, Wenli, Yaxin Gu, Chengfen Zhou, and Changwei Hu. "Current Challenges and Perspectives for the Catalytic Pyrolysis of Lignocellulosic Biomass to High-Value Products." Catalysts 12, no. 12 (2022): 1524. http://dx.doi.org/10.3390/catal12121524.

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Lignocellulosic biomass is an excellent alternative of fossil source because it is low-cost, plentiful and environmentally friendly, and it can be transformed into biogas, bio-oil and biochar through pyrolysis; thereby, the three types of pyrolytic products can be upgraded or improved to satisfy the standard of biofuel, chemicals and energy materials for industries. The bio-oil derived from direct pyrolysis shows some disadvantages: high contents of oxygenates, water and acids, easy-aging and so forth, which restrict the large-scale application and commercialization of bio-oil. Catalytic pyrol

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6

Lu, Qiang, Xu-Ming Zhang, Zhi-Bo Zhang, Ying Zhang, Xi-Feng Zhu, and Chang-Qing Dong. "Catalytic fast pyrolysis of cellulose mixed with sulfated titania to produce levoglucosenone: Analytical Py-GC/MS study." BioResources 7, no. 3 (2012): 2820–34. http://dx.doi.org/10.15376/biores.7.3.2820-2834.

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Sulfated titania (SO42-/TiO2) was prepared and used for catalytic fast pyrolysis of cellulose to produce levoglucosenone (LGO), a valuable anhydrosugar product. Analytical pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) technique was employed in this study to achieve the catalytic fast pyrolysis of cellulose and on-line analysis of the pyrolysis vapors. Experiments were performed to investigate the effects of several factors on the LGO production, i.e. pyrolysis temperature, cellulose/catalyst ratio, TiO2 crystal type, and pyrolysis time. The results indicated that the SO42-/TiO2 cat

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7

Kordatos, K., A. Ntziouni, S. Trasobares, and V. Kasselouri-Rigopoulou. "Synthesis of Carbon Nanotubes on Zeolite Substrate of Type ZSM-5." Materials Science Forum 636-637 (January 2010): 722–28. http://dx.doi.org/10.4028/www.scientific.net/msf.636-637.722.

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The present work deals with the synthesis of carbon nanotube-zeolite composites using as method the catalytic liquid spray pyrolysis. The nanotubes were formed after pyrolysis of toluene on the surface of a zeolite of type ZSM-5, which was used as a catalytic substrate. ZSM-5 zeolite was synthesized using the autoclave process and full characterized. Prior to the pyrolyses, the catalytic substrates were produced by mixing a certain amount of zeolite with a solution of Fe(NO3)3•9H2O of specific concentration. The obtained materials from the spray pyrolysis were characterized by scanning electro

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8

Zhang, Zhi Bo, Xiao Ning Ye, Qiang Lu, Chang Qing Dong, and Yong Qian Liu. "Production of Phenolic Compounds from Low Temperature Catalytic Fast Pyrolysis of Biomass with Activated Carbon." Applied Mechanics and Materials 541-542 (March 2014): 190–94. http://dx.doi.org/10.4028/www.scientific.net/amm.541-542.190.

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Activated carbon (AC) was reported as a promising catalyst to selectively produce phenolic compounds from biomass using the micro-wave assisted catalytic pyrolysis technique. In order to evaluate the catalytic performance of the AC under the traditional fast pyrolysis process, analytical pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) technique was applied for the catalytic fast pyrolysis of biomass mixed with the AC. Polar wood was selected as the feedstock, and experiments were conducted to reveal the AC-catalyzed poplar wood pyrolysis behavior and product distribution. The results

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9

Liu, Zhongzhe, Simcha Singer, Daniel Zitomer, and Patrick McNamara. "Sub-Pilot-Scale Autocatalytic Pyrolysis of Wastewater Biosolids for Enhanced Energy Recovery." Catalysts 8, no. 11 (2018): 524. http://dx.doi.org/10.3390/catal8110524.

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Improving onsite energy generation and recovering value-added products are common goals for sustainable used water reclamation. A new process called autocatalytic pyrolysis was developed at bench scale in our previous work by using biochar produced from the biosolids pyrolysis process itself as the catalyst to enhance energy recovery from wastewater biosolids. The large-scale investigation of this process was used to increase the technical readiness level. A sub-pilot-scale catalytic pyrolytic system was constructed for this scaled-up study. The effects of configuration changes in both pyrolyt

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10

Liu, Juan, Xia Li та Qing Jie Guo. "Study of Catalytic Pyrolysis of Chlorella with γ-Al₂O₃ Catalyst". Advanced Materials Research 873 (грудень 2013): 562–66. http://dx.doi.org/10.4028/www.scientific.net/amr.873.562.

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Chlorella samples were pyrolysed in a fixed bed reactor with γ-Al2O3 or ZSM-5 molecular sieve catalyst at 600°C. Liquid oil samples was collected from pyrolysis experiments in a condenser and characterized for water content, kinematic viscosity and heating value. In the presence of catalysts , gas yield decreased and liquid yield increased when compared with non-catalytic pyrolysis at the same temperatures. Moreover, pyrolysis oil from catalytic with γ-Al2O3 runs carries lower water content and lower viscosity and higher heating value. Comparison of two catalytic products, the results were sho

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11

Ghimiș, Simona-Bianca, Florin Oancea, Monica-Florentina Raduly, et al. "Direct Hydrothermal Synthesis and Characterization of Zr–Ce-Incorporated SBA-15 Catalysts for the Pyrolysis Reaction of Algal Biomass." Energies 17, no. 15 (2024): 3765. http://dx.doi.org/10.3390/en17153765.

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In recent years, algae have emerged as a promising feedstock for biofuel production, due to their eco-friendly, sustainable, and renewable nature. Various methods, including chemical, biochemical, and thermochemical processes, are used to convert algal biomass into biofuels. Pyrolysis, a widely recognized thermochemical technique, involves high temperature and pressure to generate biochar and bio-oil from diverse algal sources. Various pyrolytic processes transform algal biomass into biochar and bio-oil, including low pyrolysis, fast pyrolysis, catalytic pyrolysis, microwave-assisted pyrolysis

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12

Kaliappan, S., M. Karthick, Pravin P. Patil, et al. "Utilization of Eco-Friendly Waste Eggshell Catalysts for Enhancing Liquid Product Yields through Pyrolysis of Forestry Residues." Journal of Nanomaterials 2022 (June 7, 2022): 1–10. http://dx.doi.org/10.1155/2022/3445485.

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In this study, catalytic and noncatalytic pyrolysis of Prosopis juliflora biomass was carried out in a fluidized bed reactor. This study highlights the potential use of forestry residues with waste eggshells under a nitrogen environment. The experiments were conducted to increase the yield of bio-oil by changing the parameters such as pyrolysis temperature, particle size, and catalyst ratio. Under noncatalytic pyrolysis, a maximum bio-oil yield of 40.9 wt% was obtained when the feedstock was pyrolysed at 500°C. During catalytic pyrolysis, the yield of bio-oil was increased by up to 16.95% comp

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13

Marlina, Ena, Akhmad Faruq Alhikami, Siti Asmaniyah Mardani, Trismawati Trismawati, and Cepi Yazirin. "Catalytic Pyrolysis of Plastic Waste using Red Mud and Limestone: Pyrolytic Oil Production and Ignition characteristics." Automotive Experiences 7, no. 3 (2024): 579–91. https://doi.org/10.31603/ae.12830.

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This study investigated the catalytic pyrolysis of polypropylene (PP) and low-density polyethylene (LDPE) using 10 wt.% red mud and 10 wt.% limestone catalysts in a batch reactor. The process was conducted at an operating temperature of 350°C with retention times of 30, 60, and 90 minutes. The effects of adding red mud and limestone catalysts on the yields of liquid, solid, and gas pyrolysis products were analyzed. The pyrolytic oil was further evaluated using droplet evaporation measurements, equipped with a K-type thermocouple and a CCD camera to monitor droplet evolution within an atmospher

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14

Sulistyo, Joko, Toshimitsu Hata, Ganis Lukmandaru, Yunida Syafriani, and Sensho Honma. "Catalytic Process in Producing Green Aromatics through Fast Pyrolysis of Wood of Five Tropical Fast Growing Trees Species." Wood Research Journal 12, no. 1 (2021): 18–27. http://dx.doi.org/10.51850/wrj.2021.12.1.18-27.

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The generation of liquid fuels and chemicals is potential through a catalytic fast pyrolysis (CFP) which is a rapid, inexpensive, and promising method utilizing tropical wood biomass as starting material. There is a little known in the potential of wood biomass from tropical fast-growing trees as starting materials for the production of liquid fuel and chemicals. In this study the formation of aromatics by pyrolytic-gas chromatography/mass spectroscopy (Py-GC/MS) is evaluated on the effect of wood species with different characteristics and its cellulose component to the formation of aromatics.

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15

Liu, Junjian, Qidong Hou, Meiting Ju, Peng Ji, Qingmei Sun, and Weizun Li. "Biomass Pyrolysis Technology by Catalytic Fast Pyrolysis, Catalytic Co-Pyrolysis and Microwave-Assisted Pyrolysis: A Review." Catalysts 10, no. 7 (2020): 742. http://dx.doi.org/10.3390/catal10070742.

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With the aggravation of the energy crisis and environmental problems, biomass resource, as a renewable carbon resource, has received great attention. Catalytic fast pyrolysis (CFP) is a promising technology, which can convert solid biomass into high value liquid fuel, bio-char and syngas. Catalyst plays a vital role in the rapid pyrolysis, which can increase the yield and selectivity of aromatics and other products in bio-oil. In this paper, the traditional zeolite catalysts and metal modified zeolite catalysts used in CFP are summarized. The influence of the catalysts on the yield and selecti

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16

Fonseca, Noyala, Roger Fréty, and Emerson Andrade Sales. "Biogasoline Obtained Using Catalytic Pyrolysis of Desmodesmus sp. Microalgae: Comparison between Dry Biomass and n-Hexane Extract." Catalysts 12, no. 12 (2022): 1517. http://dx.doi.org/10.3390/catal12121517.

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The present work deals with the production of hydrocarbons in the C5–C12 range obtained from the fast micropyrolysis of a laboratory-grown Desmodesmus sp. microalgae. It compares the properties of this specific fraction of hydrocarbons using or not using transition alumina catalysts during pyrolysis in experiments with both pure dried microalgae and its n-hexane extract. The microalgae were characterised using thermogravimetry (TG) and CHN analysis; the n-hexane extract was analysed through Fourier transform infrared spectroscopy (FTIR). The pyrolysis experiments were performed in a multi-shot

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17

Hidayat, Arif, Muflih Arisa Adnan, and Heni Dewajani. "Production Biofuels from Palm Empty Fruit Bunch by Catalytic Pyrolysis Using Calcined Dolomite." Materials Science Forum 1029 (May 2021): 153–58. http://dx.doi.org/10.4028/www.scientific.net/msf.1029.153.

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In this study, Palm Empty Fruit Bunch (PEFB) was utilized to produce bio-oil through non-catalytic and catalytic pyrolysis process. A fixed-bed reactor was applied to conduct pyrolysis experiments at atmospheric pressure. Comparison of bio-oils obtained from non-catalytic and catalytic pyrolysis wih different pyrolysis temperature was studied in terms product yield. The maximum bio-oil yield of 52.4% was obtained at pyrolysis temperature of 600 °C. Furthermore, based on Gas Chromatography-Mass Spectrophotoscopy (GC-MS) analysis, the percentage of phenolic compounds in bio-oil products from cat

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18

Yang, Yi, Zhongyang Luo, Simin Li, Kongyu Lu, and Wenbo Wang. "Catalytic pyrolysis of hemicellulose to produce aromatic hydrocarbons." BioResources 14, no. 3 (2019): 5816–31. http://dx.doi.org/10.15376/biores.14.3.5816-5831.

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Catalytic fast pyrolysis of hemicellulose with zeolite catalysts is a promising method to produce aromatic hydrocarbons (Carlson et al. 2009). In this paper, the behavior of hemicellulose catalytic pyrolysis with HZSM-5 (with three different silica to alumina ratio, 23, 50, 80), HY, and Hβ was studied. Pyrolysis vapor was separated into non-condensable vapors and condensable fractions. The fractions were qualified and quantified by a gas chromatography / flame ionization detector (GC/FID) system and a gas chromatography / mass spectrometer (GC/MS) system, respectively. The influences of cataly

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19

Belbessai, Salma, El-Hadi Benyoussef, and Nicolas Abatzoglou. "Catalytic pyrolysis of high-density polyethylene for the production of carbon nanomaterials: effect of pyrolysis temperature." ENP Engineering Science Journal 3, no. 1 (2023): 54–58. http://dx.doi.org/10.53907/enpesj.v3i1.177.

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A two-stage reaction process is followed to convert high-density polyethylene (HDPE) into carbon nanofilaments (CNFs) and hydrogen-rich gas. The experiments are performed in a continuous mode in a two-stage quartz reactor: thermal pyrolysis of HDPE followed by the catalytic decomposition of the pyrolysis gases over a nickel catalyst prepared from mining residues. To examine the effect of the pyrolysis temperature on the yield and quality of the final products, two steps were followed. First, non-catalytic pyrolysis experiments were run at different temperatures (600, 650, and 700 °C), and the

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20

Balasundram, V., N. Ibrahim, and R. Isha. "The Effect of Temperature on Catalytic Pyrolysis of HDPE Over Ni/Ce/Al2O3." Journal of Advanced Research in Materials Science 77, no. 1 (2021): 26–35. http://dx.doi.org/10.37934/arms.77.1.2635.

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The main objective of the current work is to investigate the influence of reaction temperature on catalytic pyrolysis of High-Density Polyurethane (HDPE) over Ni/Ce/Al2O3 into enriched hydrocarbons of pyrolytic oil and gas The experiments were performed at four different pyrolysis reaction temperatures (500, 600, 700, and 800 °C) via in-situ fixed bed reactor. The Al2O3 (75 wt.%) was used as a support, while nickel (20 wt.%) and cerium (5 wt.%) were impregnated as promoters via incipient wetness impregnation method. The catalyst to plastic mass ratio was kept constant at 1:1 for all investigat

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21

Zhou, Quan, Quyet Van Le, Han Yang, et al. "Sustainable conversion of agricultural biomass into renewable energy products: A Discussion." BioResources 17, no. 2 (2022): 3489–508. http://dx.doi.org/10.15376/biores.17.2.zhou.

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This paper discusses the use of agricultural biomass as a promising resource for renewable energy production, e.g., bio-oil and biogas via pyrolysis and catalysis, among other technologies. In order to prevent the accumulation of agricultural biomass, most countries still use traditional disposal or processing methods, e.g., burning in the field, which not only has a low energy conversion rate, but also releases harmful gases, e.g., CO2, CO, and NH3. These traditional methods are regarded as inefficient with respect to the low utilization of waste; they also pose a threat to human health. The

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Kharitontsev, V. B., E. A. Tissen, E. S. Matveenko, et al. "Estimating the efficiency of catalysts for catalytic pyrolysis of polyethylene." Kataliz v promyshlennosti 23, no. 2 (2023): 58–65. http://dx.doi.org/10.18412/1816-0387-2023-2-58-65.

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The paper is devoted to investigation of the catalytic pyrolysis of high-density polyethylene (PE) in the presence of HBEA, HZSM-5 and HFER catalysts and natural clay. Catalytic pyrolysis of plastic materials is a promising method for treatment of secondary raw materials because it allows converting polymers into chemical compounds, which further serve as a source for chemical industry. Physicochemical parameters of the catalysts were estimated using various methods: IR Fourier spectroscopy, X-ray diffraction analysis, physical adsorption of N2, thermogravimetric analysis, and pyrolytic gas ch

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Reza, Md Sumon, Iskakova Zhanar Baktybaevna, Shammya Afroze, et al. "Influence of Catalyst on the Yield and Quality of Bio-Oil for the Catalytic Pyrolysis of Biomass: A Comprehensive Review." Energies 16, no. 14 (2023): 5547. http://dx.doi.org/10.3390/en16145547.

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In the modern world, as the population rises and fossil fuel supplies decline, energy demands continue to rise. Moreover, the use of fossil fuels harms the ecology, contributing to pollution and global warming. In order to overcome these difficulties, several approaches are revealed, such as the utilization of biomass as a renewable source of energy. Studies revealed that biomass can be converted into bioenergy via several thermal conversion processes, like pyrolysis, gasification, and torrefaction. Pyrolysis is the most convenient process to obtain three different types of biofuels (biochar a

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Sulistyo, Joko, Toshimitsu Hata, Sensho Honma, Ryohei Asakura, and Sri Nugroho Marsoem. "Green Aromatics from Catalytic Fast Pyrolysis of Fast Growing Meranti Biomass." Wood Research Journal 4, no. 1 (2017): 13–18. http://dx.doi.org/10.51850/wrj.2013.4.1.13-18.

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The study on catalytic pyrolysis decomposition of Shorea leprosula wood biomass to form aromatic compounds in fast pyrolysis was performed by pyrolytic-gas chromatography/mass spectroscopy (Py-GC/MS) and transmission electron microscope (TEM) - electron energy-loss spectroscopy (EELS) to analyze the chemical compound and solid residue microstructure. Py-GC/MS and TEM-EELS analysis showed that the fast pyrolysis increased the decomposition of hardwood, in which in the presence of ZSM-5 catalyst, the liquid products from wood decomposition was then diffused into the pore of ZSM-5 catalyst to for

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Iisa, Kristiina, David J. Robichaud, Michael J. Watson, et al. "Improving biomass pyrolysis economics by integrating vapor and liquid phase upgrading." Green Chemistry 20, no. 3 (2018): 567–82. http://dx.doi.org/10.1039/c7gc02947k.

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Partial deoxygenation of bio-oil by catalytic fast pyrolysis with subsequent coupling and hydrotreating can lead to improved economics and will aid commercial deployment of pyrolytic conversion of biomass technologies.

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Yel, Esra, Merve Kalem, Gamze Göktepeli, Afra Özgan Kurt, Gülnare Ahmetli, and Vildan Önen. "Catalytic co-pyrolysis of PET/PP plastics and olive pomace biomass with marble sludge catalyst." Turkish Journal of Analytical Chemistry 7, no. 1 (2025): 33–45. https://doi.org/10.51435/turkjac.1609960.

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Sustainable and efficient waste management requires involvement of symbiotic solutions to various types of wastes, and so to achieve circular economy. Through this motivation, in this study, combined thermochemical conversion (pyrolysis) of plastics, biomass and marble processing effluents physicochemical treatment sludge (K1) were studied. In this combination, plastics were petroleum-based synthetic aromatic (PET) and aliphatic (PP) organics, while olive pomace-OP was natural agricultural residue. K1 was mineral product, which was first introduced in the literature as pyrolysis catalyst by th

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Adetunji, Adewale S., and Pious O. Okekunle. "Characterization of bio-oil yield from catalytic pyrolysis of Zea mays indentata corncob." LAUTECH Journal of Engineering and Technology 18, no. 4 (2024): 86–105. https://doi.org/10.36108/laujet/4202.81.040.

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In this study, the effect of zinc oxide catalyst on the quality of bio-oil from catalytic pyrolysis of Zea mays indentata corncob in a fixed bed reactor at optimum bio-oil yield condition was determined. Non-catalytic pyrolysis was carried out in the temperature range of 450 – 600 oC and residence time range of 20 – 35 mins, according to D-optimal design of Design Expert software (version 13.0.1), to determine the optimum condition for bio-oil yield. Catalytic pyrolysis was carried out at the optimum condition for bio-oil yield with biomass to catalyst (b/c) weight ratios in the range 97.5/2.5

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Khalafova, Irada A., Natalya K. Andryushchenko, and Kanan N. Mammadli. "CATALYTIC PYROLYSIS SYSTEMS OF LIGHT HYDROCARBONS." Deutsche internationale Zeitschrift für zeitgenössische Wissenschaft 77 (April 4, 2024): 37–41. https://doi.org/10.5281/zenodo.10928992.

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An alternative to thermal pyrolysis is catalytic pyrolysis, which provides a higher conversion of raw materials at a lower temperature than thermal pyrolysis, that is, it reduces the energy intensity of the process and increases the selectivity of pyrolysis for lower alkenes

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Poddar, Sourav, Rima Biswas, Sudipto De, and Ranjana Chowdhary. "Analysis of Tar by Catalytic Pyrolysis of Waste Jute." Journal of Advances in Mechanical Engineering and Science 1, no. 1 (2015): 12–19. http://dx.doi.org/10.18831/james.in/2015011002.

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Ali, Ghulam, Marrij Afraz, Faisal Muhammad, et al. "Production of Fuel Range Hydrocarbons from Pyrolysis of Lignin over Zeolite Y, Hydrogen." Energies 16, no. 1 (2022): 215. http://dx.doi.org/10.3390/en16010215.

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In the current study, plain and lignin loaded with Zeolite Y, hydrogen was decomposed in a pyrolysis chamber. The reaction parameters were optimized and 390 °C, 3% catalyst with a reaction time of 40 min were observed as the most suitable conditions for better oil yield. The bio-oil collected from the catalyzed and non-catalyzed pyrolytic reactions was analyzed by gas chromatography mass spectrometry (GCMS). Catalytic pyrolysis resulted in the production of bio-oil consisting of 15 components ranging from C3 to C18 with a high percentage of fuel range benzene derivatives. Non-catalytic pyrolys

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Zhong, Ming, Haiping Huang, Pengcheng Xu, and Jie Hu. "Catalysis of Minerals in Pyrolysis Experiments." Minerals 13, no. 4 (2023): 515. http://dx.doi.org/10.3390/min13040515.

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Recent research in the field of oil and gas geochemistry has focused on the catalytic role of minerals in geological history. Thermal simulation experiments are considered a valuable means of studying the formation and transformation of hydrocarbons. In this paper, we review the catalytic mechanisms, processes, and various arguments for different types of minerals in thermal simulation experiments from the perspective of mineral additives. We focus on two categories: (1) minerals that provide direct catalysis, such as clay minerals, alkali metals, carbonate rocks, and some transition metal ele

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Amanat, A., Z. Hussain, M. Imran Din, et al. "Catalytic pyrolysis of Sweet Sorghum plant by using fixed-bed reactor; Effect of different temperatures on the pyrolytic bio-oil yield and FT-IR characterization." Journal of Optoelectronic and Biomedical Materials 13, no. 4 (2021): 137–44. http://dx.doi.org/10.15251/jobm.2021.134.137.

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Pyrolysis of sweet sorghum, lignocellulosic graminaceous plant has been conceded using the fixed bed tubular reactor. Temperature plus catalyst are the important factors which effect the pyrolysis process. Here catalytic pyrolysis has been done by the catalyst ZnO-Fe2O3/Al2O3 at different temperatures. We have done our pyrolysis reactions on3changed temperatures i.e. 250̊ C, 350 ̊C, 450 ̊C. By using catalyst, we obtain the pyrolytic products at a very low temperature and it is proved very efficient method for biofuel production. From different temperature experimentation, we concluded that the

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Lee, Younghyun, Soosan Kim, Jisu Kim, et al. "Catalytic Pyrolysis as a Technology to Dispose of Herbal Medicine Waste." Catalysts 10, no. 8 (2020): 826. http://dx.doi.org/10.3390/catal10080826.

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The use of herbal medicine has increased tremendously over the last decades, generating a considerable amount of herbal medicine waste. Pyrolysis is a promising option to dispose of biomass and organic waste such as herbal medicine waste. Herein, an activated carbon-supported Pt catalyst (Pt/AC) and carbon dioxide (CO2) were applied to the pyrolysis of real herbal medicine waste to develop a thermal disposal method to prevent the formation of benzene derivatives that are harmful to the environment and human health. When using the Pt/AC catalyst in the pyrolysis of the herbal medicine waste at

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Bautista, Angelica S., Karl Nikolai O. Rivera, Trixie Anne Kimberly M. Suratos, and Maria Natalia R. Dimaano. "Conversion of polypropylene (PP) plastic waste to liquid oil through catalytic pyrolysis using Philippine natural zeolite." IOP Conference Series: Materials Science and Engineering 1318, no. 1 (2024): 012053. http://dx.doi.org/10.1088/1757-899x/1318/1/012053.

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Abstract The accumulation of plastic waste compelled the need to develop energy recovery methods, such as pyrolysis, which could convert plastics into valuable energy sources. Pyrolysis requires high operating temperatures; thus, a catalyst is often utilized to speed up the process. In this study, the viability of Philippine Natural Zeolite (PNZ) as a catalyst was investigated through the conversion of polypropylene (PP) waste into liquid oil using catalytic pyrolysis. The PP waste feedstocks were pre-mixed with the PNZ in a 1:10 ratio. Pyrolysis was carried out in a heating mantle for three t

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Abdulkhani, Ali, Zahra Echresh Zadeh, Solomon Gajere Bawa, et al. "Comparative Production of Bio-Oil from In Situ Catalytic Upgrading of Fast Pyrolysis of Lignocellulosic Biomass." Energies 16, no. 6 (2023): 2715. http://dx.doi.org/10.3390/en16062715.

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Catalytic upgrading of fast pyrolysis bio-oil from two different types of lignocellulosic biomass was conducted using an H-ZSM-5 catalyst at different temperatures. A fixed-bed pyrolysis reactor has been used to perform in situ catalytic pyrolysis experiments at temperatures of 673, 773, and 873 K, where the catalyst (H-ZSM-5) has been mixed with wood chips or lignin, and the pyrolysis and upgrading processes have been performed simultaneously. The fractionation method has been employed to determine the chemical composition of bio-oil samples after catalytic pyrolysis experiments by gas chroma

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Akhtar, Muhammad Naseem, Nabeel Ahmad, and Feras Alqudayri. "Catalytic Transformation of LDPE into Aromatic-Rich Fuel Oil." Catalysts 15, no. 6 (2025): 532. https://doi.org/10.3390/catal15060532.

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The present study investigates the catalytic conversion of low-density polyethylene (LDPE) into high-grade fuel oil using a semi-batch reactor at 350 °C under ambient pressure, with a catalyst-to-LDPE ratio of 1:20. Zeolite-based catalysts were synthesized by impregnating different metals (Fe, Zn, Cr, Mn, and Ga) onto ZSM-5 with a silica-to-alumina ratio of 30 (Z30). These catalysts were characterized using BET, XRD, and NH3-TPD techniques to evaluate their physicochemical properties. The results showed that catalytic pyrolysis of LDPE yielded less pyrolytic oil compared to non-catalytic pyrol

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Song, Jinling, Chuyang Tang, Xinyuan An, Yi Wang, Shankun Zhou, and Chunhong Huang. "Catalytic Pyrolysis of Sawdust with Desulfurized Fly Ash for Pyrolysis Gas Upgrading." International Journal of Environmental Research and Public Health 19, no. 23 (2022): 15755. http://dx.doi.org/10.3390/ijerph192315755.

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In this study, the catalytic effects of desulfurized fly ash (DFA) on the gaseous products of sawdust (SD) pyrolysis were investigated in a tubular furnace. The results indicated that DFA catalyzed the process of SD decomposition to improve the hydrogen content and the calorific value of pyrolysis gas. As to its effect on pyrolysis products, DFA increased the non-oxide content of CH4, C3H4, and H2 in pyrolysis gas by 1.4-, 1.8-, and 2.3-fold, respectively. Meanwhile, the catalytic effect of DFA reduced the CO and CO2 yields during DFA/SD pyrolysis. Based on the model compound method, CaSO3 and

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Papuga, Saša, Milica Djurdjevic, Andrea Ciccioli, and Stefano Vecchio Ciprioti. "Catalytic Pyrolysis of Plastic Waste and Molecular Symmetry Effects: A Review." Symmetry 15, no. 1 (2022): 38. http://dx.doi.org/10.3390/sym15010038.

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The present review addresses the latest findings and limitations in catalytic pyrolysis for the processing of plastic waste into valuable fuels. Compared to thermal degradation of plastics, catalytic pyrolysis provides better results in regards to the quality of the obtained liquid hydrocarbon fuel. Different types of catalysts can be used in order to improve the thermal degradation of plastics. Some of the most used catalysts are different types of zeolites (HUSY, HZSM-5, Hβ), Fluid Catalytic Cracking (FCC), silica-alumina catalysts, or natural clays. There is a need to find affordable and ef

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Dhanalakshmi, C. Sowmya, N. Ahalya, P. Vidhyalakshmi, et al. "Individual and Catalytic Co-Pyrolysis of Agricultural Outcomes and Polymeric Materials over Nano-HZSM-5 Zeolite: Synergistic Effects and Yield Analysis for Heating Applications." Journal of Nanomaterials 2022 (May 12, 2022): 1–11. http://dx.doi.org/10.1155/2022/3743299.

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The catalytic effect of nano-HZSM-5 zeolite on co-pyrolysis of cotton shell (CS) and municipal plastic wastes (MPW) was studied. The influence of reaction temperature during individual pyrolysis, blending ratio, and catalytic effects was studied by applying constant heating rate. The experiments were conducted in a fixed bed batch type reactor. The hindering effect during catalytic decomposition of MPW was carried out and its positive synergistic effect on liquid oil yield was analysed. The reaction temperature for all the experiments are fixed based on the decomposition rate obtained from the

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Xu, Tao, Jue Xu, and Yongping Wu. "Hydrogen-Rich Gas Production from Two-Stage Catalytic Pyrolysis of Pine Sawdust with Calcined Dolomite." Catalysts 12, no. 2 (2022): 131. http://dx.doi.org/10.3390/catal12020131.

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The potential of catalytic pyrolysis of biomass for hydrogen and bio-oil production has drawn great attention due to the concern of clean energy utilization and decarbonization. In this paper, the catalytic pyrolysis of pine sawdust with calcined dolomite was carried out in a novel moving bed reactor with a two-stage screw feeder. The effects of pyrolysis temperature (700–900 °C) and catalytic temperature (500–800 °C) on pyrolysis performance were investigated in product distribution, gas composition, and gas properties. The results showed that with the temperature increased, pyrolysis gas yie

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Lee, Heejin, Young-Min Kim, Sang-Chul Jung, and Young-Kwon Park. "Catalytic Pyrolysis of Polyethylene Terephthalate Over Desilicated Beta." Journal of Nanoscience and Nanotechnology 20, no. 9 (2020): 5594–98. http://dx.doi.org/10.1166/jnn.2020.17636.

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The desilication effect of Beta on the catalytic pyrolysis of polyethylene terephthalate (PET) was investigated in this study. Compared to parent Beta, desilicated Beta revealed the higher aromatics formation efficiency due to its larger pore size allowing the efficient diffusion of PET pyrolysis intermediates to the catalyst pore. Compared to the in-situ catalytic pyrolysis, ex-situ catalytic PET pyrolysis over desilicated Beta produced a larger amount of aromatics. The desilicated catalyst could be re-used without catalyst regeneration due to the small extent of catalyst deactivation.

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You, Ranyilong, Xinyu Yang, Chuyang Tang, and Xinyang Zhou. "Investigating the influence of desulfurization fly ash on the upgrading of biomass-derived pyrolysis gas." BioResources 20, no. 2 (2025): 2544–55. https://doi.org/10.15376/biores.20.2.2544-2555.

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The catalytic role of desulfurization fly ash (DFA) was explored as a means to upgrade biomass-derived pyrolysis gas, with a focus on integrating waste valorization and renewable energy production. Soybean straw (SS) was pyrolyzed with DFA to assess the influence on pyrolytic product distribution. The results indicate that DFA notably influenced the yield and quality of pyrolysis gas, with optimal yields achieved at specific DFA concentrations. The study also demonstrated that DFA enhanced the production of methane (CH4) and hydrogen (H2) while reducing carbon monoxide (CO), thereby improving

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Basu, Biswadip, and Deepak Kunzru. "Catalytic pyrolysis of naphtha." Industrial & Engineering Chemistry Research 31, no. 1 (1992): 146–55. http://dx.doi.org/10.1021/ie00001a021.

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Bagri, Ranbir, and Paul T. Williams. "Catalytic pyrolysis of polyethylene." Journal of Analytical and Applied Pyrolysis 63, no. 1 (2002): 29–41. http://dx.doi.org/10.1016/s0165-2370(01)00139-5.

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Gupta, Mehul. "Catalytic Pyrolysis of Polythene." Journal of Chemistry and Chemical Sciences 8, no. 10 (2018): 1159–65. http://dx.doi.org/10.29055/jccs/686.

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Perez, G., M. Raimondo, A. De Stefanis, and A. A. G. Tomlinson. "Catalytic pyrolysis—gas chromatography." Journal of Analytical and Applied Pyrolysis 35, no. 2 (1995): 157–66. http://dx.doi.org/10.1016/0165-2370(95)00906-5.

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Binnal, Prakash, Vinayak Suresh Mali, Shruthi Puttappa Karjekannavar, and Sumanth Raj Mogaveera. "Enhancing Gasoline Range Hydrocarbons by Catalytic Co-pyrolysis of Rice Husk with Low Density Polyethylene (LDPE) Using Zeolite Socony Mobil#5(ZSM-5)." Periodica Polytechnica Chemical Engineering 64, no. 2 (2019): 221–29. http://dx.doi.org/10.3311/ppch.13850.

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In the present work, catalytic co-pyrolysis of rice husk with low density polyethylene (LDPE) was investigated to enhance the amount of gasoline range hydrocarbons in the bio-oil. Zeolite Socony Mobil#5(ZSM-5) was used as catalyst. The specific surface area, pore volume and the average pore size of ZSM-5 were evaluated to be 418.041 m2/g, 0.227 cc/g and 1.628 nm respectively. Optimum temperature for obtaining highest bio-oil yield for non-catalytic co-pyrolysis was 600 °C, resulting in yield of 51.26 %. For catalytic co-pyrolysis, the optimum temperature was 500 °C with a bio-oil yield of 38.8

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Park, Young-Kwon, Se Jeong Lim, Muhammad Zain Siddiqui, Jong-Ki Jeon, Kyung-Seun Yoo, and Young-Min Kim. "The Use of Low Cost Nanoporous Catalysts on the Catalytic Pyrolysis of Polyethylene Terephthalate." Journal of Nanoscience and Nanotechnology 21, no. 7 (2021): 4121–24. http://dx.doi.org/10.1166/jnn.2021.19198.

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This study evaluated the feasibility of low-cost nanoporous catalysts, such as dolomite and red mud, on the production of aromatic hydrocarbons via the catalytic pyrolysis of polyethylene terephthalate (PET). Compared to the non-catalytic pyrolysis of PET, catalytic pyrolysis over both dolomite and red mud produced larger amounts of aromatic hydrocarbons owing to their catalytic cracking efficiency and decarboxylation efficiency. Between the two catalysts, red mud, having a larger BET surface area and higher basicity than dolomite, showed higher efficiency for the production of aromatic hydroc

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Zhao, Hao, Zhaoping Zhong, Zhaoying Li, and Wei Wang. "Research on catalytic pyrolysis of algae based on Py-GC/MS." Royal Society Open Science 6, no. 11 (2019): 191307. http://dx.doi.org/10.1098/rsos.191307.

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In order to improve the quality of catalysis products of algae, composite molecular sieve catalyst was prepared by digestion and crystallization of HZSM-5 to reduce the oxygen content of the catalytic products. According to the analysis of the pyrolysis products, the best preparation conditions were chosen of tetra propylammonium hydroxide (TPAOH) solution 2.0 mol l −1 , cetyltrimethylammonium bromide (CTAB) solution 10 wt%, crystallization temperature 110°C, digestion–crystallization time: 24–24 h. The results indicate that the main function of catalysts is to promote the conversion of alcoho

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Jamilatun, Siti, and Nurmustaqimah. "Catalytic pyrolysis and non-catalytic pyrolysis of sugarcane bagasse: Product yield and bio-oil characterization." BIO Web of Conferences 148 (2024): 01001. https://doi.org/10.1051/bioconf/202414801001.

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Utilizing pyrolysis to convert biomass, biomass is an exceptionally promising and environmentally sustainable alternative source of renewable energy. This study investigates the impact of catalysts, specifically activated charcoal and Ni metal-based catalysts, on the pyrolysis outcomes of bagasse at a temperature of 500ºC. The pyrolysis process was conducted with different catalyst weights, namely 2.5 grams and 5 grams, as well as without any catalyst. The quantification of pyrolysis products, such as bio-oil, tar, charcoal, and gas, was conducted by the utilization of a fixed bed reactor. The

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