循环灰条件下1-甲基萘催化裂解的实验研究  

EXPERIMENTAL INVESTIGATION ON THE CATALYTIC CRACKING REACTIONS OF 1-METHYLNAPHALENE OVER CIRCULATING ASH

作　　者：吕俊复[1] 陈科宇[1] 黄南[1] 路霁翎[1] 刘青[1] 岳光溪[1] 

机构地区：[1]清华大学热能工程系煤清洁燃烧国家重点实验室,北京副教授100084

出　　处：《煤炭转化》2002年第2期74-78,共5页Coal Conversion

基　　金：国家"十五"科技攻关项目 (2 0 0 113 A40 1A0 3 );国家重点基础研究发展规划项目 (G19990 2 2 2 0 4)

摘　　要：热解气化过程中 ,促进焦油的裂解使之转化为高热值煤气 ,对高挥发分劣质煤和生物质燃料的清洁高效利用具有重要的意义 .在固定床反应器上 ,以石英砂和两种烟煤在循环流化床锅炉上燃烧形成的循环灰为床料 ,实验研究了焦油中含量较高的 1 -甲基萘的裂解反应 ,测定了反应动力学参数 .结果表明 ,与石英砂条件下相比 ,循环灰促进了 1 -甲基萘的裂解 ,反应活化能降低 。It is very important for clean and efficient utility of low rank coal with high volatile matter or biomass to decrease the tar yield and cracking it into high calorie gas during gasification.1 methylnaphalene were experimentally investigated in a fixed bed over varies bed materials,including quartz,two kinds of circulating ash from the circulating fluidized bed boilers fired bituminous.And the cracking reaction apparent activation energies for three cases were obtained,163.4 kJ/mol for quartz,101.2 kJ/mol and 92.6 kJ/mol for the two kinds of circulating ash.The results show that the circulating ash accelerates the cracking reaction as catalyst,which cause apparent activation energies decrease and the total yield of gas cracking products increasing.

关 键 词：循环灰 1-甲基萘 催化裂解 实验研究 焦油组分 动力学参数 

分 类 号：TQ241.52[化学工程—有机化工]