摩托车尾气净化催化剂耐久性试验  

Endurance Experiment of Metal-Supported Catalyst for Motorcycles Exhaust Purification

作　　者：张振强[1] 桓源峰[2,3] 贺小昆[2,3] 刘沁曦 王远启 

机构地区：[1]昆明贵金属研究所,云南昆明650106 [2]昆明贵研催化剂有限责任公司 [3]昆明理工大学材料与冶金学院 [4]湖北通达汽车零部件集团有限公司

出　　处：《小型内燃机与摩托车》2009年第4期81-84,共4页Small Internal Combustion Engine and Motorcycle

基　　金：云南省重点新产品开发计划(2007BA005);云南省科研院所专项基金(2006KFZX-06)资助

摘　　要：描述了所制金属载体催化剂的性能,包括γ-Al2O3涂层比表面积、起燃温度、空燃比和涂层脱落问题,并对试验数据作了分析。结果表明,该催化剂新鲜样品低温起燃且三效耦合性能和空燃比特性均很好,但经历快速老化和水热老化试验后,性能相对变差;涂层脱落率很低,达到0.971%,远远低于6%,为更长的耐久性提供了有利支撑。This paper describes the performance of the made catalyst and analyzes the testing data, including specific surface area of γ-Al2O3 coating, light-off temperature, air fuel ratio and weight loss. The results show that, there were excellent low temperature light-off and air fuel ratio characteristics and three way coupling performance. However, after fast and hydro-thermal ageing tests, its property was worse comparatively ; weight loss reached 0.971% , which was much less than 6% and ensured the longer endurance.

关 键 词：耐久性 冷启动 起燃温度 老化 空燃比 

分 类 号：TK411.53[动力工程及工程热物理—动力机械及工程]