辽宁工程技术大学学报（自然科学版）2017，Vol.36Issue(4)：348-353,6.DOI:10.11956/j.issn.1008-0562.2017.04.003
不同变质程度煤燃烧阶段动力学参数
Kinetics parameters of coal combustion phases at different metamorphic degree
摘要
Abstract
In order to study on characteristic temperature and risk level of coal combustion,temperature range of coal at each phrase and characteristic temperature of coal were determined by thermogravimetric experiment.Using Freeman-Carroll differential method,the reaction mechanism function were established,and preexponential factor and activation energy were solved.Its change law of characteristic temperature,preexponential factor and activation energy were analyzed.The results show that the temperature range of six coal samples at combustion phrase are 247℃～433℃,280℃～537℃,279℃～542℃,272℃～550℃,313℃～574℃ and 365℃～594℃.With the increase of fixed carbon,coal combustion process and characteristic temperature are suppressed,preexponential factor and activation energy increase.No.1 coal sample is the easiest to spontaneous combustion,and No.6 coal sample is the hardest to spontaneous combustion.T1 increases from 247 to 365℃,T2 increases from 386 to 479℃,T3 increases from 408 to 514℃,T4 increases from 433 to 594℃.关键词
煤燃烧/特征温度点/固定碳/指前因子/活化能/滞后效应Key words
coal combustion/characteristic temperature/fixed carbon/preexponential factor, activation energy/hysteresis effect分类
矿业与冶金引用本文复制引用
周西华,李昂,聂荣山,白刚,宋东平,孙宝铁..不同变质程度煤燃烧阶段动力学参数[J].辽宁工程技术大学学报（自然科学版）,2017,36(4):348-353,6.基金项目
国家自然科学基金项目(51274113,51274115) （51274113,51274115）
辽宁省教育厅基金项目(L2012122) （L2012122）
