木屑和聚乙烯流化床共气化实验研究  

Experimental Research on the Co-gasification of Sawdust and Polyethylene in a Fluidized Bed

作　　者：董长青[1] 杨勇平[1] 倪景峰[1] 金保升[2] 

机构地区：[1]华北电力大学动力工程系电站设备状态监测与控制教育部重点实验室,北京市昌平区102206 [2]东南大学动力工程系,江苏省南京市210096

出　　处：《中国电机工程学报》2007年第5期55-60,共6页Proceedings of the CSEE

基　　金：国家自然科学基金项目(50476069;50576023)~~

摘　　要：为揭示城市生活垃圾中典型组分在气化过程中的相互作用,该文以木屑和聚乙烯为研究对象,在流化床中进行了单组分和双组分共气化实验研究。结果显示,通过控制燃料量和反应温度,可以避免流化恶化现象发生。木屑与聚乙烯共气化时,CH_4的浓度分布与单组分聚乙烯气化CH_4趋势一致;共气化时,产品气中CO浓度随着温度升高而降低,近似于单组分木屑和聚乙烯气化时CO浓度的线性组合;共气化时C_2H_m生成量减少。静止床高增加时,有利于CO、H_2、CH_4以及低碳氢化合物的生成。In order to making clear the interaction of municipal solid waste components, the gasification and co-gasification of sawdust and polyethylene were carried out in a fluidized bed. The results showed that the de-fluidized phenomena could be avoided through controlling the fuel input and bed temperature. For the co-gasification, CH4 concentr- ation varied as the same trend as polyethylene gasification; CO decreased with temperature increasing and it could be expressed by the linear combination of sawdust and polyethy- lene gasification; the interaction of sawdust and polyethylene promoted the decreasing of C2Hm; CO, H2, CH4 and short chain hydrocarbons increased with static bed height increasing.

关 键 词：木屑 聚乙烯 生物质 气化 流化床 

分 类 号：TK6[动力工程及工程热物理—生物能]