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SJTU Team with Collaborators Published Paper on Famous Journal of Energy and Fuel

October 10, 2017      Author: He Yifeng

Biomass Energy Engineering Research Center, School of Agriculture and Biology, Shanghai Jiao Tong University and European Bioenergy Research Institute, Aston University, Aston University, UK together published a paper on the famous journal in the field of energy and fuel, Renewable and Sustainable Energy Reviews (8.050 Impact factor and fifth in 92 SCI journals). The title of the paper is "Processing Thermogravimetric Analysis Data for Isoconversional Kinetic Analysis of Lignocellulosic Biomass Pyrolysis: Case Study of Corn Stalk". Associate Professor Cai Junmeng from School of Agriculture and Biology, SJTU are the first author and the corresponding author. Xu Di and Dong Zhujun from SJTU, Yu Xi, Dr. Yang Yang, Dr. Scott W. Banks and Professor Anthony V. Bridgwater from European Bioenergy Research Institute, Aston University are collaborators of the paper.

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Modeling of lignocellulosic biomass pyrolysis processes can be used to determine their key operating and design parameters. This requires significant amount of information about pyrolysis kinetic parameters, in particular the activation energy. Thermogravimetric analysis (TGA) is the most commonly used tool to obtain experimental kinetic data, and isoconversional kinetic analysis is the most effective way for processing TGA data to calculate effective activation energies for lignocellulosic biomass pyrolysis. This paper reviews the overall procedure of processing TGA data for isoconversional kinetic analysis of lignocellulosic biomass pyrolysis by using the Friedman isoconversional method. This includes the removal of "error" data points and dehydration stage from original TGA data, transformation of TGA data to conversion data, differentiation of conversion data and smoothing of derivative conversion data, interpolation of conversion and derivative conversion data, isoconversional calculations, and reconstruction of kinetic process. The detailed isoconversional kinetic analysis of TGA data obtained from the pyrolysis of corn stalk at five heating rates were presented. The results have shown that the effective activation energies of corn stalk pyrolysis vary from 148 to 473 kJ mol-1 when the conversion ranges from 0.05 to 0.85.

 

 


Translated by Zheng Mengyan       Reviewed by Wang Binyu