文献类型：期刊文献

中文题名：生物质与煤共热解行为及模型化研究

英文题名：STUDY ON CO-PYROLYSIS BEHAVIOR AND MODEL OF BIOMASS AND COAL

作者：李帅丹[1];陈雪莉[1];于广锁[1];王辅臣[1]

机构：[1]华东理工大学煤气化及能源利用教育部重点实验室,上海200237

年份：2014

卷号：35

期号：6

起止页码：965

中文期刊名：太阳能学报

外文期刊名：Acta Energiae Solaris Sinica

收录：CSTPCD;;EI(收录号：20143017985332);Scopus;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：国家科技支撑计划(2012BAA09B02)

语种：中文

中文关键词：生物质;煤;共热解;热重分析

外文关键词：biomass ; coal; co-pyrolysis; TGA

摘要：采用热天平分析仪对稻草和北宿煤、神府煤的共热解行为进行研究,建立共热解模型,并对实验结果进行分析。结果表明,当温度低于700 K时,失重曲线与稻草失重曲线吻合较好。温度高于700 K时,失重曲线不能用生物质和煤失重曲线的叠加描述。共热解模型表明,加入少量生物质后,共热解反应表观活化能出现下降趋势,随生物质含量增加,活化能逐渐升高。生物质中纤维素和半纤维素对于共热解反应的参与程度低于木质素。对比神府煤和北宿煤与稻草共热解实验结果表明,较低的煤热解温度有利于提高生物质利用率。
The co-pyrolysis behavior of rice straw, Beisu coal and Shenfu coal were studied and co-pyrolysis model was established. The co-pyrolysis behavior was analyzed by TGA. The results showed that the calculated TG curves fit well with the experimental curves when temperature is lower than 700 K. While temperature is higher than 700 K, TG curve can＇ t be calculated by each individual fuel. Co-pyrolysis model showed that activation energy should be lower if adding some biomass into coal, moreover, activation energy rises with the increasing biomass ratio. Lignin has larger contribution than cellulose and hemi-cellulose. Comparing different coals, it showed that lower pyrolysis temperature of coal will improve utilization of biomass.