文献类型：期刊文献

中文题名：煤热失重动力学的研究

英文题名：Study of the Coal Pyrolytic Kinetics by Thermogrametry

作者：朱学栋[1];朱子彬[1];张成芳[1]

机构：[1]华东理工大学化工工艺研究所,上海200237

年份：1999

卷号：13

期号：3

起止页码：223

中文期刊名：高校化学工程学报

外文期刊名：Journal of Chemical Engineering of Chinese Universities

收录：CSTPCD;;Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：煤;热解;热重分析;活化能;分布模型;非等温热解

外文关键词：Coal, Pyrolysis, Thermogrametry, Distributed-activanon-energy model

摘要：以具有Ｇａｕｓｓｉａｎ活化能分布的平行反应模型考察了我国煤化程度不同的八种煤的非等温热解过程。研究表明：煤热解的活化能呈Ｇａｕｓｓｉａｎ正态分布，其平均活化能介于２１０～２４５ｋＪ·ｍｏｌ－１之间，近似于高分子化合物的热解活化能。模型能够描述自低温到高温煤的非等温热解的全过程，对煤种和升温速率变化有宽广范围的适应性。
The data of weight loss, which come from the pyrolysises of & rank of Chinese coals bymeans of thermogrametric analysis under non-isothermal conditions, are fitted to the Gaussiandistributed-activation-energies model of coal pyrolysis, an infinite, independent, parallel reaction. Theresults indicate that the average activation energies of the model are in the range of 210-245kJ. mol-1,and close to that of the macro-molecular polymer, besides, the model can describe satisfactorily thewhole process of coal pyrolysis, and can be widely used in different rank of Chinese coal and variousheating rate.