贫燃条件下汽车尾气净化新型催化剂——耐湿热双功能催化剂  

Heat and wet-fast dual functional catalysts——new catalysts for automotive tail gas purification under lean burn conditions

作　　者：谭宇新[1] 王乐夫[1] 黄传荣[1] 付晔[1] 

机构地区：[1]华南理工大学化学工程系,广州510640

出　　处：《现代化工》2000年第3期19-22,24,共5页Modern Chemical Industry

基　　金：广东省自然科学基金!资助项目 ( No.980 51 2 )

摘　　要：由于汽车尾气对环境和人类的危害 ,开发和研制高效、高活性、高寿命、高抗毒性的尾气净化催化剂以净化大气是目前迫切需要解决的问题。本文综述了目前国际上由低碳烃催化还原催化剂的研究现状 ,分析了各种催化剂各自的优势和存在的问题 ,着重论述分析了双功能催化剂特性 ,并提出以湿热稳定性好的磷酸硅铝分子筛为载体研制贫燃条件下汽车尾气净化耐湿热双功能催化剂的新设想。As automotive tail gas is harmful to environment and human body, the development of catalysts with high efficiency, good activity, long service life and strong toxic resistance for tail gas purification in order to clean the atmosphere is an urgent task today. The present research of catalytic reduction catalysts based on lower hydrocarbons in the world is described in this article. The advantages and disadvantages of a variety of catalysts are also analyzed. The characteristics of dual functional catalysts are highlighted, and a new concept of preparing dual functional catalysts for automotive tail gas purification under lean burn conditions using SAPO with high heat and wet fastness as carrier is proposed.

关 键 词：贫燃条件 耐湿热 催化剂 汽车 尾气净化 

分 类 号：TQ426.96[化学工程]