王孝莉^1,2，霍翠英^1,2，王军^1,2，安丽花^1,2，徐永杰^1,3

（1.内燃机可靠性国家重点试验室，山东 潍坊 261061；

2.潍柴动力空气净化科技有限公司，山东 潍坊 261061；

3.潍柴西港新能源动力有限公司，山东 潍坊 261061）

摘要：基于欧Ⅵ用钒基SCR催化剂和铜基SCR催化剂小样试验，从转化效率、氨存储、水热老化等三个方面，对钒基催化剂和铜基催化剂进行对比研究，分析发现铜基催化剂在低温转化效率方面优于钒基催化剂，在高温转化效率方面劣于钒基催化剂；而在氨存储和水热老化方面优于钒基催化剂。

关键词：钒基催化剂；铜基催化剂；NOx转化效率；氨存储

Abstract: Vanadium-based catalyst and copper-based catalyst for Euro Ⅵ were studied by sample test. From the comparative study of NOx conversion efficiency, ammonia storage and hydrothermal aging, analysis results indicated that the NOx conversion efficiency of copper-based catalyst was better than that of vanadium-based catalyst at low temperature, however NOx conversion efficiency of copper-based catalyst was worse than that of vanadium-based catalyst at high temperature. Regarding ammonia storage and hydrothermal aging copper-based catalyst was better than vanadium-based catalyst.

Key Words: vanadium-based catalyst; copper-based catalyst; NOx conversion efficiency; ammonia storage