标题:
催化燃烧Cl-VOCs催化材料的研究进展Recent Progress in Catalytic Materials for Catalytic Combustion of Chlorinated Volatile Organic
Compounds
作者:
杨学华, 唐爱东, 李咸伟
关键字:
催化剂, 贵金属, 金属氧化物, 含氯挥发性有机物, 失活Catalyst; Noble metal; Metal oxide; Chlorinated Volatile Organic Compounds; Deactivation
期刊名称:
《Material Sciences》, Vol.1 No.1, 2011-05-05
摘要:
从催化剂活性组分、催化剂载体、催化剂失活三个方面，对近年来催化燃烧含氯挥发性有机物(Cl-VOCs)催化剂的研究进行了总结。贵金属催化剂用于降解Cl-VOCs的研究主要集中在选择有效载体和合成双组份贵金属催化剂，非贵金属催化剂的研究则主要着重于合成高活性过渡金属复合氧化物、钙钛矿和尖晶石等催化剂；催化燃烧Cl-VOCs时氯与活性物质生成的氯化物被认为是导致催化剂失活的重要原因，实际应用中水蒸气、积碳等对催化降解Cl-VOCs的反应活性也有很大影响。本文将为Cl-VOCs污染物催化燃烧时催化剂的合理选择及催化反应条件的优化控制提供一定参考。
he research progress in the catalytic combustion of Cl-VOCs(Chlorinated Volatile Organic Compounds) is reviewed. In this review, the effects of the active species, catalyst support, water vapor and coking on the catalytic combustion reaction were summarized. The research related to noble metal catalysts mainly focuses on developing new supports and dual noble catalysts. The research on non-noble metal catalysts concentrate on the development of transition metal mixed oxide，perovshites and spinel catalysts; The chlorination of active species is regarded as an important reason for catalyst deactivation. Besides, the effects of water vapor and coking deactivation on the catalytic combustion process are discussed with considering the practical application. This review will be helpful in choosing an appropriate catalyst and the optimal reaction conditions for the removal of Cl-VOCs by catalytic combustion with high activity and high stability.