摘要
机外措施是控制柴油机NOx 排放的有效措施,是柴油机排放控制的关键技术。选择催化还原(SCR)技术是降低车用柴油机NOx 排放的机外措施之一。介绍了SCR技术的理论依据、系统组成及工作原理;重点介绍了国外车用柴油机SCR技术的应用情况及还需解决的问题。
Off-engine counter measure is effective to control NO_ x exhaust emissions from diesel vehicle and also key technology to control diesel engine emissions. Selective Catalytic Reduction (SCR) is one of off-engine counter measures against NO_ x emissions from vehicular diesel engines. This paper introduces theoretical basis, system composing and operating principle of SCR measure, and emphasizes application status of SCR measure in foreign vehicular diesel engines and existing problems that should be solved.
出处
《车用发动机》
北大核心
2005年第3期5-7,共3页
Vehicle Engine
关键词
柴油机
NOx
排放控制
选择性催化还原
diesel engine
NO_ x
emissions control
selective catalytic reduction
