Reaction Chemistry and Kinetics of Corn Stalk Pyrolysis without and with Ga/HZSM-5

Huang, Ben, Xie, Xinyue, Yang, Yang, Rahman, Md Mahbubur, Zhang, Xingguang, Yu, Xi, Blanco Sanchez, Paula Helena, Dong, Zhujun, Zhang, Yuqing, Bridgwater, Anthony V and Cai, Junmeng (2018). Reaction Chemistry and Kinetics of Corn Stalk Pyrolysis without and with Ga/HZSM-5. Journal of Thermal Analysis and Calorimetry ,

Abstract

The bifunctional Ga/HZSM-5 catalyst has been proven having the capability to increase the selectivity of aromatics production during catalytic pyrolysis of furan and woody biomass. However, the reaction chemistry and kinetics of pyrolysis of herbaceous biomass promoted by Ga/HZSM-5 is rarely reported. Pyrolysis–gas chromatography/mass spectrometry (Py–GC/MS) analysis and non-isothermal thermogravimetric analysis at four heating rates were carried out to investigate the decomposition behavior and pyrolysis kinetics of corn stalk without and with Ga/HZSM-5. The effective activation energies for corn stalk pyrolysis were calculated by using the Friedman isoconversional method. The Py–GC/MS analysis results indicated that the Ga/HZSM-5 catalyst had a high selectivity toward producing the aromatic chemicals of xylene, toluene and benzene, whereas the major products from non-catalytic pyrolysis of corn stalk were oxygenated compounds. The presence of Ga/HZSM-5 could significantly reduce the effective activation energies of corn stalk pyrolysis from 159.9–352.4 kJ mol−1 to 41.6–99.8 kJ mol−1 in the conversion range of 0.10–0.85.

Publication DOI: https://doi.org/10.1007/s10973-018-7962-8
Divisions: Engineering & Applied Sciences > European Bioenergy Research Institute (EBRI)
Engineering & Applied Sciences > Chemical engineering & applied chemistry
Engineering & Applied Sciences
Additional Information: © Springer Nature B.V. 2018. The final publication is available at Springer via http://dx.doi.org/10.1007/s10973-018-7962-8
Uncontrolled Keywords: Catalytic pyrolysis,Biomass,Kinetics,Isoconversional kinetic analysis,PyGC/MS,TG
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Related URLs: https://link.sp ... 0973-018-7962-8 (Publisher URL)
Accepted Date: 2018-11-28
Published Online Date: 2018-12-07
Authors: Huang, Ben
Xie, Xinyue
Yang, Yang ( 0000-0003-2075-3803)
Rahman, Md Mahbubur
Zhang, Xingguang
Yu, Xi ( 0000-0003-3574-6032)
Blanco Sanchez, Paula Helena
Dong, Zhujun
Zhang, Yuqing ( 0000-0001-5825-0131)
Bridgwater, Anthony V ( 0000-0001-7362-6205)
Cai, Junmeng

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