低浓度甲烷稀土催化燃烧实验研究  

Experimental Study on Lean Methane Rare Earth Catalytic Combustion

作　　者：蔡万大[1] 俞瑜[1] 马培勇[1] 林其钊[1] 

机构地区：[1]中国科学技术大学热科学和能源工程系,安徽合肥230026

出　　处：《工业加热》2009年第3期16-18,共3页Industrial Heating

基　　金：国家"863计划"课题基金资助项目(2006AA05Z210)

摘　　要：制备了碳化硅蜂窝陶瓷载体稀土催化剂,对甲烷进行稀土催化燃烧实验研究。实验测量了催化燃烧温度和尾气组分,并对催化燃烧反应的甲烷转化率进行计算和分析。实验结果表明:在200～400℃甲烷转化率在92%左右,在500～800℃甲烷转化率达到99%以上,而且尾气中的CO,NOX和HC含量非常低。Rare Earth catalysts with Silicon carbide （SIC） honeycomb support were prepared. Methane Rare Earth catalyst combustion experiment was carried out. Catalyst combustion temperature and composition of fuel exhausts were measured and methane conversion were calculated and analyzed. The results show that methane conversion is about 92% from 200 ℃ to 400 ℃, methane conversion is above 92% from 500 ℃ to 800 ℃, CO, NOx, HC in fuel exhausts is very low.

关 键 词：低浓度甲烷 催化燃烧 稀土催化剂 

分 类 号：TQ517.5[化学工程]