烟煤与农业废弃物共热解特性研究  

Study on Characteristics of Co-pyrolysis of Bituminous Coal and Agricultural Wastes

作　　者：阎杰[1,2] 谢军[2] 陈聪[3] 赵洪宇[4] 柳树成[1] 宋强[1] 舒新前[1] YAN Jie XIE Jun CHEN Cong ZHAO Hong-yu LIU Shu-cheng SONG Qiang SHU Xin-qian(School of Chemical and Environmental Engineering, China University of Mining and Technology （Beijing）, Beijing 100083, China School of Civil Engineering, Hebei Institute of Architecture and Civil Engineering, Zhangjiakou 075000, China Zhangjiakou Municipal Environmental Protection Bureau, Zhangjiakou 075000, China School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China)

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083 [2]河北建筑工程学院土木工程学院,河北张家口075000 [3]张家口市环保局,河北张家口075000 [4]北京科技大学土木与资源工程学院,北京100083

出　　处：《煤炭技术》2017年第5期275-278,共4页Coal Technology

基　　金：陕西省工业科技攻关计划(2016GY-147);新疆维吾尔自治区科技攻关计划(201532108);2016张家口市科技局指令性项目(1611057B)

摘　　要：为研究烟煤与农业废弃物共热解特性,采用热重分析仪和固定床反应器对烟煤和玉米秸秆、玉米芯混合物进行共热解对比实验。结果表明:热解温度由200℃升高至400℃时,煤样失重率逐渐增大,TG曲线明显下降,外推起始失重温度409.59℃。共热解生成的气体中H2和CO2的产率明显高于ZC3原煤单独热解,少量玉米秸秆的加入促进了煤的热解。并且高于玉米秸秆单独热解时的加权理论值。煤与玉米芯混合物共热解过程中的协同效应使气体产率增大,焦油产率降低。In order to explore characteristics of co-pyrolysis of caking bituminous coal and agricultural wastes, the co-pyrolysis experiments of the mixture of caking bituminous coal and corn straw, corn cob were carried out with a fixed bed reactor and an thermal gravimetric analyzer. At the same time, the gas phase products and the tar yield of the separate pyrolysis of pure samples and mixture were compared and analyzed. The results indicate that when the pyrolysis temperature was increased from 200 ℃ to 400℃, the weight loss of coal sample increased gradually, the TG curve decreased obviously, and the extrapolated starting weight loss temperature was 409,59 ℃. The yield of H2 and CO2 in gas produced by co-pyrolysis was significantly higher than that of ZC3 raw coal. The addition of a small amount of corn straw promoted the pyrolysis of ZC3 raw coal. The gas yield is higher than the weighted value of corn straw pyrolysis. The synergistic effect of mixture co-pyrolysis of coal and corn cob makes the gas yield increased and tar yield decreased.

关 键 词：烟煤 农业废弃物 共热解 热解特性 气体产率 

分 类 号：TQ530.2[化学工程—煤化学工程]