Journal of Zhejiang University SCIENCE
(ISSN 1009-3095, Monthly)
2003   Vol. 4   No. 4   p.441-447

Kinetics study on biomass pyrolysis for fuel gas production

CHEN Guan-yi(陈冠益)(Section of Thermal Power Engineering, Department of Mechanical Engineering and Marine Technology, Delft University of Technology, the Netherlands)
FANG Meng-xiang(方梦祥)(Clean Energy and Environment Engineering Key Lab of MOE , Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, China)
ANDRIES, J.(Section of Thermal Power Engineering, Department of Mechanical Engineering and Marine Technology, Delft University of Technology, the Netherlands)
LUO Zhong-yang(骆仲泱)(Clean Energy and Environment Engineering Key Lab of MOE , Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, China)
SPLIETHOFF, H.(Section of Thermal Power Engineering, Department of Mechanical Engineering and Marine Technology, Delft University of Technology, the Netherlands)
CEN Ke-fa(岑可法)(Clean Energy and Environment Engineering Key Lab of MOE , Institute for Thermal Power Engineering, Zhejiang University, Hangzhou 310027, China)

Abstract:Kinetic knowledge is of great importance in achieving good control of the pyrolysis and gasification process and optimising system design. An overall kinetic pyrolysis scheme is therefore addressed here. The kinetic modelling incorporates the following basic steps: the degradation of the virgin biomass materials into primary products (tar, gas and semi-char), the decomposition of primary tar into secondary products and the continuous interaction between primary gas and char. The last step is disregarded completely by models in the literature. Analysis and comparison of predicted results from different kinetic schemes and experimental data on our fixed bed pyrolyser yielded very positive evidence to support our kinetic scheme.
Keywords:Biomass, Pyrolysis, Kinetic study, Gas production

CLC Number:TK223 Document ID:A

Foundation Item:Prject (No.2001CB409600) Supported by the National Key Basic Research Program(973) of China
Author Resume:CHEN Guan-yi(陈冠益),E-mail:G.Chen@wbmt.tudelft.nl;FANG Meng-xiang(方梦祥),E-mail:mxfang@cmee.zju.edu.cn

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Manuscript Received:2002 Nov. 3

Manuscript Revised:2003 Jan. 5

Published:2003 Aug. 30