掺混生物质焦和煤焦共气化的热重分析  

Thermal Gravimetric Analysis on Co-gasification Characteristics of Biomass and Coal Blends

作　　者：严帆帆[1] 朱予东[1] 徐培培[1] 刘志强[1] 

机构地区：[1]华北电力大学(保定)能源与动力工程学院,河北省保定市071003

出　　处：《能源技术》2009年第4期205-208,共4页Energy Technology

摘　　要：采用热重分析法对煤焦和几种生物质焦及其混合物的气化过程及动力学规律进行了分析,分析结果表明煤焦的失重与生物质焦相比差别明显,混合物中的生物质焦所占比重越大、发生失重的温度越低。进一步采用Coats-Redfern方法对样品气化过程进行了动力学分析,得到了生物质焦、煤焦及其混合物表观活化能。The thermal gravimetric analysis method was used to study the pyrolysis gasification behavior of Biomass char and coal char and theirs dynamics law. The results shows that the samplers weigh loss process has obvious difference , which is composed of coal char and biomass char. And with the increase of the biomass charts in the mixing sample proportion, the weight loss process shifts to the low temperature direction. By the kinetic study of the sample gasified process using Coats-Redfern, the value of activation energy of the biomass char, coal char and the mixture was obtained.

关 键 词：热重分析 生物质焦 煤焦 共气化 活化能 

分 类 号：TK6[动力工程及工程热物理—生物能]