摘要
甲烷催化燃烧具有低温操作、环保、节能、长时间稳定燃烧、安全系数高等诸多优点 ,引起人们广泛关注。介绍了有关甲烷燃烧催化材料的一些最近发展动向 ,并提出了几种很有发展前景的甲烷燃烧催化材料。同时指出要实现催化材料的真正产业化 ,几个问题尚需解决 :对于高活性的贵金属材料主要是提高贵金属的热分解温度 ,提高材料的高温稳定性 ;对于高温催化材料 (如钙钛矿和六铝酸盐材料等 )应努力提高材料的催化活性 ,并开发耐高温、抗热冲击、比表面大的载体 (或活性涂层 )材料。
Methane catalytic combustion is attracting much attention for many years, due to its low combustion temperature, low emission of air pollutants such as NO x , CO and unburned hydrocarbons, high combustion efficiency, as well as long time combustion stability and security. Current development of methane combustion catalytic technologies and some promising methane catalytic combustion materials were presented. It is also pointed out that several problems should be solved for its practical commercialization. These problems are as follows: improving hot decompostion temperature and stability of noble metals, enhancing catalytic activity of high temperature materials such as perovskites and hexaaluminates, and developing high temperature heat resistant and shock resistant support or washcoat materials with large surface area.
出处
《稀有金属》
EI
CAS
CSCD
北大核心
2003年第6期764-768,共5页
Chinese Journal of Rare Metals
基金
国家十五"863"项目 ( 2 0 0 1AA3 2 40 5 0 )资助
关键词
催化燃烧
甲烷
活性
稳定性
催化材料
catalytic combustion
methane
activity
stability
catalytic materials
