生物质气化焦油在高温木炭床上的裂解试验研究  

Biomass gasification tar destruction in a high temperature charcoal bed

作　　者：王磊[1] 吴创之[1] 陈平[1] 阴秀丽[1] 谢军[1] 

机构地区：[1]中国科学院广州能源研究所

出　　处：《可再生能源》2005年第5期30-34,共5页Renewable Energy Resources

基　　金：国家高技术研究发展计划(863计划)项目(2001AA514010);中国科学院知识创新工程项目(KJCX2-306)

摘　　要：在高温木炭床裂解炉上,对以木粉为原料的120kW鼓泡流化床气化炉产生的气化气中的焦油进行了裂解研究,采用溶剂冷态捕集焦油和称重分析相结合的方法对裂解前、后的焦油含量进行了测量。结果表明,在高温木炭床上发生的木炭吸附焦油、焦油的高温裂解和木炭灰催化裂解焦油等一系列的物理化学过程,可有效降低燃气中的焦油含量,同时可以获得热值为5MJm/3的可燃气。In a high-temperature fixed bed burner with charcoal as bed meterial, experiments of tar destruction were performed in gasification process of a 120 kWh BFB gasifier with wood powder as feedstock.Tar was absorbed by cool solvent and analyzed by gravimetric method before and after tar destruction . The result shows that a series of physical ＆ chemistry processes（e.g.tar obsorbed by charcoal,thermal destruction of tar and catalytic destruction of tar by ash of char） which occurred almost simultaneously in high temperature charcoal bed will effectively decreas the tar content in producer gas and a gas with about 5 MJ/m^3 of LHV was produced at the same time.

关 键 词：焦油裂解 生物质气化 流化床 

分 类 号：TQ524[化学工程—煤化学工程] TK6[动力工程及工程热物理—生物能]