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TECHNICAL PAPERS: Gas Turbines: Combustion and Fuels, and Coal, Biomass and Alternative Fuels

Study on Biomass Pyrolysis Kinetics

[+] Author and Article Information
Xiaodong Zhang, Min Xu, Rongfeng Sun, Li Sun

 Energy Research Institute of Shandong Academy of Sciences, No. 19 Keyuan Road, Jinan 250014, China

J. Eng. Gas Turbines Power 128(3), 493-496 (Mar 01, 2004) (4 pages) doi:10.1115/1.2135816 History: Received October 01, 2003; Revised March 01, 2004

Pyrolysis is the most fundamental process in thermal chemical conversion of biomass, and pyrolysis kinetic analysis is valuable for the in-depth exploration of process mechanisms. On the basis of thermal gravity analysis of different kinds of biomass feedstock, thermal kinetics analysis was performed to analyze the pyrolysis behavior of biomass. With the apparent kinetic parameters derived, a kinetic model was proposed for the main reaction section of biomass pyrolysis process. The pyrolysis characteristics of three kinds of biomass material were compared in view of corresponding biochemical constitution. Through model simulation of different pyrolysis processes, the diversity in pyrolysis behavior of different kinds of biomass feedstock was analyzed and pyrolysis mechanism discussed. The results derived are useful for the development and optimization of biomass thermal chemical conversion technology.

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Copyright © 2006 by American Society of Mechanical Engineers
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Figures

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Figure 5

Comparison of pyrolysis behavior of different kind of biomass feedstocks (heating rate β=20K∕min)

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Figure 4

Comparison of pyrolysis behavior of similar kind of biomass feedstocks (heating rate β=20K∕min)

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Figure 3

Effect of heating rate on biomass pyrolysis process

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Figure 2

Compensation of kinetic parameters under different heating rates

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Figure 1

Typical TG and DTG curve of biomass

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