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.
出处
《煤炭转化》
CAS
CSCD
北大核心
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)
