煤泥水煤浆燃烧特性的热重研究  

A thermogravimetry investigation on the combustibility of coalslime water slurry

作　　者：曹晓哲[1] 赵卫东[1] 刘建忠[1] 孙剑峰[1] 周俊虎[1] 岑可法[1] 

机构地区：[1]浙江大学能源清洁利用国家重点实验室,浙江杭州310027

出　　处：《煤炭学报》2009年第10期1394-1399,共6页Journal of China Coal Society

摘　　要：采用热重分析仪研究了山西潞安煤泥水煤浆的着火、燃烧特性,并与不同低挥发分含量的水煤浆进行了对比;利用TG-DTG法确定了燃烧的着火和燃尽温度,利用Coats-Redfern法进行反应动力学分析.试验结果表明:潞安煤泥水煤浆的着火温度和燃尽温度均高于低挥发分和高挥发分水煤浆,利用可燃性指数判断潞安煤泥水煤浆燃烧性能低于低挥发分和高挥发分水煤浆.由燃烧反应动力学分析结果表明:在不同的升温速率下(12.5,33.3,50.0℃/min),潞安煤泥水煤浆的活化能指数(120.89,78.50,71.48kJ/mol)均高于低挥发分和高挥发分水煤浆.The ignition and combustion characteristics of Lu＇ an coalslime water slurry （CWS） were studied through thermogravimetric apparatus, and its combustibility was compared with that of the coal water slurry samples made by a low-volatile-matter coal and a high-volatile-matter coal. The ignition and burnout temperature was obtained by TG - DTG method, and the reaction kinetics were analysed with Coats-Redfern method. The results show that the ligniton and burnout temperatures of Lu＇ an coalslime water slurry are higher than that of low-volatile-matter CWS and high-volatile-matter CWS; the combustibility of Lu＇ an eoalslime water slurry is worse than that of lowvolatile-matter CWS and hi at different conversion rate mol） , Lu＇ an coalslime water volatile-matter CWS by using signitability number. The dynamic analysis shows that 12.5, 33.3, 50.0 ℃/min） , activation energy E （ 120. 89, 78.50, 71.48 kJ/ slurry is higher than that of low-volatile-matter CWS and high-volatile-matter CWS.

关 键 词：煤泥 水煤浆 燃烧特性 热重分析 动力学分析 

分 类 号：TQ534.4[化学工程—煤化学工程]