Microwave-assisted catalytic pyrolysis of apple wood to produce biochar: Co-pyrolysis behavior, pyrolysis kinetics analysis and evaluation of microbial carriers

Abstract In this paper, we studied the catalytic pyrolysis behavior of microcrystalline cellulose (MC) in catalytic systems with acidic [Bmim]OTf as the media at temperatures of 140°C, 180°C, 220°C, 260°C, and 300°C. The pyrolysis behavior was investigated via SEM, XRD, FTIR, and GC-MS. During the catalysis of [Bmim]OTf, the pyrolysis temperature of MC was reduced to 140°C significantly and the crystalline structure of MC was destroyed rapidly. The novel synergistic catalytic effect of CF3SO3- and [Bmim]+ was discovered, which may lead to MC-selective cleavage of glycosidic, C-C, C-O, and C-H bonds, accompanied by new bond formation, which showed the production of many small molecular compounds. Furthermore, a novel mechanism model of evolution in [Bmim]OTf at low temperature was developed from a microscopic point of view. This research had obvious significance for the mechanism of directional regulation of target products, finally realizing the high efficiency utilization of biomass.

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Microwave-assisted catalytic pyrolysis of refuse-derived fuel (RDF) to improve pyrolysis performance and biochar properties

Fuel Processing Technology ◽

10.1016/j.fuproc.2021.107129 ◽

2022 ◽

Vol 227 ◽

pp. 107129

Author(s):

Pu Yang ◽

Dening Jia ◽

Bingcheng Lin ◽

Xiuzheng Zhuang ◽

Xiaotao Bi

Keyword(s):

Catalytic Pyrolysis ◽

Microwave Assisted ◽

Refuse Derived Fuel

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Microwave-assisted fast catalytic pyrolysis and gasification of biomass for biofuels and bioenergy production

Journal of Fundamentals of Renewable Energy and Applications ◽

10.4172/2090-4541-c6-065 ◽

2018 ◽

Vol 08 ◽

Author(s):

Roger Ruan

Keyword(s):

Catalytic Pyrolysis ◽

Bioenergy Production ◽

Microwave Assisted

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Research on Pyrolysis Kinetics of Shenhua Coal and Direct Liquefaction Residue

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.550-553.2758 ◽

2012 ◽

Vol 550-553 ◽

pp. 2758-2762 ◽

Cited By ~ 2

Author(s):

Xi Jie Chu ◽

Yong Gang Wang ◽

Li Hong Zhao

Keyword(s):

Experimental Data ◽

Activation Energy ◽

Kinetic Parameters ◽

Heating Rate ◽

Coal Pyrolysis ◽

Pyrolysis Kinetics ◽

Differential Heating ◽

Pyrolysis Behavior ◽

Direct Liquefaction ◽

Kinetics Of

The pyrolysis tests of Shenhua coal and Shenhua direct liquefaction residue have been carried out using thermogravimetric at the differential heating rate. The kinetic parameters k and E were calculated using DAEM method. Results show DAME model can describe the pyrolysis behavior of Shenhua coal within the range of 20% to 95%, the activation energy of coal pyrolysis ranges from 53.98 to 279.38 kJ/mol, and DAME model can describe the behavior of Shenhua direct liquefaction residue within the range of 10% to 80%, the activation energy of residue pyrolysis is about 170 kJ/mol. The results of which are basically consistent with the experimental data.

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