干馏松焦油在钙基催化剂作用下的裂解燃烧特性  

Decomposition and combustion characteristics of dry distillation pine tar with calcium-based catalyst

作　　者：刘波[1] 时章明[1] 何金桥[2] 肖波[2] 

机构地区：[1]中南大学能源科学与工程学院,湖南长沙410083 [2]长沙理工大学能源与动力工程学院,湖南长沙410076

出　　处：《中南大学学报（自然科学版）》2013年第3期1235-1239,共5页Journal of Central South University:Science and Technology

基　　金：国家重点基础研究发展规划("973"计划)资助项目(2009CB219803);可再生能源电力技术湖南省重点实验室开放基金资助项目(2010KFJJ007)

摘　　要：为提高耐火材料组分的焦油催化裂解作用,对松焦油与不同钙基催化剂添加物试样进行燃烧条件下的热重实验,并对催化剂作用下焦油的组分、着火性、稳燃及燃尽性进行分析。研究结果表明:钙基催化剂不能改善干馏松焦油的着火性,但对焦油具有良好的催化重整作用,使得干馏松焦油的燃尽特性指数由46.85×10-4min-1迅速下降到(20.73～24.12)×10-4min-1;燃烧生成的CO2与CaO的作用有利于促进燃烧,CaCO3则促进了焦油中重质烃成分与轻质烃成分中碳元素的交换,使焦油组分更趋一致。In order to study the combustion characteristics of pine tar under calcium-based catalyst,the samples of pine tar and different calcium-based catalysts were investigated by thermogravimetric analyzer（TGA）,and the samples’ properties of components,ignitability,stable-combustion ability and burnedout were studied.The results show that calcium-based catalyst cannot improve the ignitability of dry distillation pine tar,but it has good catalytic reforming role to tar,and can make the burnedout characteristic index of dry distillation pine tar fall rapidly from 46.85×10 -4 min -1 to （20.73-24.12）×10 -4 min -1 .The effect between CaO and CO2 creating during combustion is in favour of tar burning. CaCO3 promotes the exchange of carbon element between the heavier hydrocarbon and the light hydrocarbon,and makes tar components more uniform.

关 键 词：焦油 生物质 热重分析 催化剂 燃烧特性 

分 类 号：TK6[动力工程及工程热物理—生物能] TK224.2