汽油机颗粒捕集催化剂研究进展  

Research progress on catalyzed gasoline particulate filter

作　　者：赵德鹏 杨冬霞 常仕英 杜君臣 赵云昆 冯丰 ZHAO Depeng;YANG Dongxia;CHANG Shiying;DU Junchen;ZHAO Yunkun;FENG Feng(State-Local Joint Engineering Laboratory of Precious Metal Catalytic Technology and Application,Kunming Sino-platinum Metals Catalysts Co.Ltd.,Kunming 650106,China.)

机构地区：[1]昆明贵研催化剂有限责任公司,贵金属催化技术与应用国家地方联合工程实验室,昆明650106

出　　处：《贵金属》2023年第3期83-89,共7页Precious Metals

基　　金：移动源污染排放控制技术国家工程实验室开放基金项目(NELMS2019C02);云南贵金属实验室科技计划项目(YPML-2022050212);云南省重大科技专项(202102AB080007)。

摘　　要：为了改善环境质量,我国在2020年7月1日对轻型汽车排放的颗粒物进行限制。为了满足法规要求,汽油机颗粒捕集催化剂技术被大量应用于汽油车后处理中。基于2007年以来50篇文献的分析,本文总结了汽油机颗粒捕集催化剂在系统布局、铂族金属种类和浓度、涂层分布、背压、颗粒物捕集、积碳再生、灰分容量以及辅助气态污染物净化方面最新研究成果;展望了汽油机颗粒捕集催化剂未来应用发展趋势。To improve ambient air quality,China have adopted regulations setting stringent limits on vehicular tailpipe emissions of particulates on July 1,2020.To meet these regulations,the catalyzed gasoline particulate filters have heavily been applied to gasoline exhaust after-treatment.Based on the analysis of 50 literatures since 2007,this review summarizes representative studies on the system layouts,platinum group metal concentrations and species,washcoat distribution,back pressure,particulates filtration efficiency,soot regeneration,ash storage capacity and auxiliary gaseous pollutant purification,in the field of catalyzed gasoline particulate filters.The future application and developments are prospected.

关 键 词：缸内直喷发动机 背压 汽油机颗粒捕集催化剂 颗粒物捕集效率 

分 类 号：TK411.5[动力工程及工程热物理—动力机械及工程]