Results 191 to 200 of about 114,749,788 (242)
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Comparison between in-situ and ex-situ catalytic pyrolysis of sawdust for gas production
Journal of Analytical and Applied Pyrolysis, 2018Abstract In this work, in-situ and ex-situ catalytic pyrolysis (CP) of sawdust by Ni-based and Cu-based catalysts are compared in a two-stage fixed bed reactor. Alkali metal K and alkaline earth metal Mg are used to modify the catalysts for comparison.
Min Song, Li Zhu, Jun Xiao
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A review on ex situ catalytic fast pyrolysis of biomass
Frontiers of Chemical Science and Engineering, 2014Catalytic fast pyrolysis (CFP) is deemed as the most promising way to convert biomass to transportation fuels or value added chemicals. Most works in literature so far have focused on the in situ CFP where the catalysts are packed or co-fed with the feedstock in the pyrolysis reactor. However, the ex situ CFP with catalysts separated from the pyrolyzer
Shaolong Wan, Yong Wang
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Pyrolysis characteristics of bean dregs and in situ visualization of pyrolysis transformation
Waste Management, 2012Biomass is an important renewable and sustainable source of energy. Waste products from biomass are considered as attractive feedstocks for the production of fuel. This work deals with the pyrolysis of bean dregs, a biomass waste from soybean processing industry.
Guangyong, Zhu +4 more
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Comparison of in-situ and ex-situ catalytic pyrolysis in a micro-reactor system
Bioresource Technology, 2014In this study, we compared ex-situ catalytic pyrolysis (CP) and in-situ CP of hybrid poplar in a micro-reactor system. When both pyrolysis and catalysis were performed at 700 °C, the carbon yield of olefins was greater for ex-situ CP than for in-situ CP (17.4% vs. 5.4%). On the other hand, in-situ CP produced more aromatic hydrocarbons than ex-situ CP (
Kaige, Wang +2 more
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Ex-situ catalytic pyrolysis of wastewater sewage sludge – A micro-pyrolysis study
Bioresource Technology, 2017Concerns over increasing amounts of sewage sludge and unsustainability of current disposal methods have led to development of alternative routes for sludge management. The large amount of organics in sewage sludge makes it potential feedstock for energy or fuel production via thermochemical pathways.
Kaige, Wang +4 more
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Chemical Engineering Journal, 2019
Abstract Mesostructured aluminosilicates of Al-MSU-F (commercial), Al-SBA-15 (home-made), and mesoMFI (a mesoporous aluminosilicate with MFI structure, home-made), with a silica-to-alumina ratio of 40, were used as catalyst for the in-situ catalytic pyrolysis (CP) of empty fruit bunches (EFB) at 600 °C.
Hoda Shafaghat +8 more
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Abstract Mesostructured aluminosilicates of Al-MSU-F (commercial), Al-SBA-15 (home-made), and mesoMFI (a mesoporous aluminosilicate with MFI structure, home-made), with a silica-to-alumina ratio of 40, were used as catalyst for the in-situ catalytic pyrolysis (CP) of empty fruit bunches (EFB) at 600 °C.
Hoda Shafaghat +8 more
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Advances in Upgrading Lignin Pyrolysis Vapors by Ex Situ Catalytic Fast Pyrolysis
Energy Technology, 2016AbstractLignin, a highly branched, substituted, mononuclear aromatic polymer, is one of the principal components of lignocellulosic biomass. Its valorization is considered an important part of the modern biorefinery scheme. However, as a result of the natural complexity and high stability of lignin, its depolymerization and the following conversion are
Lujiang Xu, Ying Zhang, Yao Fu
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Energy, 2017
Abstract Scrap tire pyrolysis was conducted to produce low sulfur oil (below 0.45 wt%), which is strongly demanded for reduction of SOx emissions. In the experiments, a continuous two-stage pyrolyzer consisting of an auger reactor and fluidized bed reactor and various additives (CaO, Fe, FeO, calcined olivine) and fluidizing media (product gas and N2)
Gyung-Goo Choi +2 more
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Abstract Scrap tire pyrolysis was conducted to produce low sulfur oil (below 0.45 wt%), which is strongly demanded for reduction of SOx emissions. In the experiments, a continuous two-stage pyrolyzer consisting of an auger reactor and fluidized bed reactor and various additives (CaO, Fe, FeO, calcined olivine) and fluidizing media (product gas and N2)
Gyung-Goo Choi +2 more
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Analysis of in situ combustion of oil with pyrolysis and vaporization
Combustion and Flame, 2011Abstract We study one-dimensional flows, when air is injected into a porous medium filled with inert gas, medium or high viscosity oil and water, giving rise to a combustion wave in a process known as high-temperature oxidation (HTO). In the oil we distinguish three pseudo-components: asphaltenes, medium and light oil.
A.A. Mailybaev +2 more
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In-situ catalytic pyrolysis of waste tires over clays for high quality pyrolysis products
International Journal of Hydrogen Energy, 2021Abstract This paper aims to evaluate the effect of low-cost clays (kaolin with different particle size and montmorillonite (MTT) modified with ZnCl2 and HCl) as catalysts on the pyrolysis products from waste tire. The results show that clays can improve the quality and yield of pyrolysis products.
Wei Luo +8 more
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