生物质焦炭高温蒸汽气化反应动力学模型研究

doi:10.3969/j.issn.0253-2417.2017.03.018

林产化学与工业 ›› 2017, Vol. 37 ›› Issue (3): 129-135.doi: 10.3969/j.issn.0253-2417.2017.03.018

生物质焦炭高温蒸汽气化反应动力学模型研究

田红, 姚灿, 陈斌斌, 刘正伟

长沙理工大学能源与动力工程学院, 湖南长沙 410114

收稿日期:2016-09-13 出版日期:2017-06-25 发布日期:2017-07-03
作者简介:田红(1977-),女,湖南永顺人,讲师,博士,主要从事生物质燃烧及气化研究工作
基金资助:
国家自然科学基金资助项目（51276023）；湖南省自然科学基金资助项目（2015JJ4005）；湖南省教育厅优秀青年项目（16B001）

Kinetic Model Study for Gasification of Biomass Char by High Temperature Steam

TIAN Hong, YAO Can, CHEN Binbin, LIU Zhengwei

School of Energy & Power Engineering, Changsha University of Science & Technology, Changsha 410114, China

Received:2016-09-13 Online:2017-06-25 Published:2017-07-03

摘要/Abstract

摘要： 利用热重分析仪分析了玉米秸秆焦炭和杉木焦炭的高温水蒸气气化反应，研究结果表明：随着水蒸气温度的升高，气化反应时间缩短，生物质焦炭转化率提高，玉米秸秆焦炭和杉木焦炭的转化率分别达到80%和90%；选取均相反应模型、颗粒反应模型和随机孔模型分析了高温下生物质焦炭的水蒸气气化反应特性，随机孔模型与实验数据拟合效果最好，其模拟的相关性系数R²均大于0.92；颗粒反应模型次之，均相反应模型最差。

关键词: 高温蒸汽气化, 生物质焦炭, 热重分析仪, 动力学模型

Abstract: Gasification experiments of corn straw char and Chinese fir char with high temperature steam were carried out by using thermogravimetric analyzer. The results showed that with the increase of steam temperature, the gasification reaction time was shortened, and the conversion degree of biomass char was also improved. The conversion degrees of corn straw char and Chinese fir char reached 80% and 90%, respectively. Gasification reaction characteristics of biomass char with high temperature steam were analyzed using the volumetric model(VM), the grain model(GM) and the random pore model(RPM). The random pore model provided the best fit to the experimental data with the correlation coefficients of all more than 0.92 followed by the grain model, and the volumetric model was the worst.

Key words: high temperature steam gasification, biomass char, thermogravimetric analyzer, kinetic model

中图分类号:

TQ424
TK6

田红, 姚灿, 陈斌斌, 刘正伟. 生物质焦炭高温蒸汽气化反应动力学模型研究[J]. 林产化学与工业, 2017, 37(3): 129-135.

TIAN Hong, YAO Can, CHEN Binbin, LIU Zhengwei. Kinetic Model Study for Gasification of Biomass Char by High Temperature Steam[J]. Chemistry and Industry of Forest Products, 2017, 37(3): 129-135.

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生物质焦炭高温蒸汽气化反应动力学模型研究

Kinetic Model Study for Gasification of Biomass Char by High Temperature Steam

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