Citation: WANG Xiao-han, SONG Qian-shi, ZENG Xiao-jun, WU Yong. Modeling study on the biomass char gasification kinetics under CO₂ atmosphere: Ⅱ. Pre-exponential factor[J]. Journal of Fuel Chemistry and Technology, ;2017, 45(5): 529-536. shu

Modeling study on the biomass char gasification kinetics under CO₂ atmosphere: Ⅱ. Pre-exponential factor

WANG Xiao-han ^1,2,*,, ,
SONG Qian-shi ^1,3 ,
ZENG Xiao-jun ^1,2 ,
WU Yong ^1,3

1.
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
2.
Key Laboratory of Renewable Energy, Chinese Academy of Sciences, Guangzhou 510640, China
3.
University of Chinese Academy of Sciences, Beijing 100049, China

Corresponding author: WANG Xiao-han, wangxh@ms.giec.ac.cn
Received Date: 11 January 2017
Revised Date: 14 March 2017

Fund Project: the National Natural Science Foundation of China 51276184

Figures(5)

Based on the simple collision theory (SCT), the calculation method of biomass char gasification rate was developed and the combined parameters to characterize the pre-exponential factor were found. Furthermore, some experimental tests for six acid-washed biomass chars, such as the isothermal gasification and so on, were performed under CO₂ atmosphere, using a thermo-gravimetric analyzer (TGA) over the temperature ranges of 800-1000 ℃, respectively. Through the comparison of experimental data and modeling results, it is found that a good agreement is made and the developed model equations can provide an effective guidance to clarify the general gasification law of biomass chars.
- biomass char,
- CO₂ gasification,
- simple collision theory,
- pre-exponential factor,
- modelling
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沈阳化工大学材料科学与工程学院沈阳 110142

Modeling study on the biomass char gasification kinetics under CO2 atmosphere: Ⅱ. Pre-exponential factor

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Modeling study on the biomass char gasification kinetics under CO₂ atmosphere: Ⅱ. Pre-exponential factor