林产化学与工业2012，Vol.32Issue(2)：30-36,7.
核桃壳与煤共热解的热重分析及动力学研究
Thermogravimetric Analysis and Kinetics of Walnut Shell and Coal Co-pyrolysis
摘要
Abstract
The pyrolysis characteristics of walnut shell, coal and their blends sample at different heating rates (5-50 K/min) in a stream of N2 were studied using thermogravimetric analysis. The results showed that the pyrolysis speed increases with the heating rate for three samples increasing. It showed a good synergy during the co-pyrolysis of walnut shell and coal. The balance thermal decomposition temperature of walnut shell, coal and their blends was 568. 9, 709. 9 and 571. 0 K, respectively. With the method of Coasts-Redfern, the pyrolysis process could be described by first-order global model for both of fast-pyrolysis and slow decomposition stage. The average activation energy was 50.6 and 17.3 kJ/mol for both pyrolysis stages of walnut shell, respectively. It was 21.1 kJ/mol for pyrolysis of lignite. But it decreased to 34.2 kj/mol and 14.5 kJ/mol for both pyroiysis stages of blends of walnut shell/coal, respectively.关键词
核桃壳/褐煤/热解/热重分析/动力学Key words
walnut shell/lignite/pyrolysis/thermogravimetric analysis/kinetics分类
化学化工引用本文复制引用
黄元波,郑志锋,蒋剑春,戴伟娣,孙云娟..核桃壳与煤共热解的热重分析及动力学研究[J].林产化学与工业,2012,32(2):30-36,7.基金项目
国家自然科学基金资助项目(30800867,31160147) （30800867,31160147）
教育部新世纪优秀人才计划资助项目(NCET-09-0906) （NCET-09-0906）
中国博士后科学基金项目(20080430465) （20080430465）
