通用小型汽油机尾气排放NO的净化  

Purification of NO Exhaust Emission of Non-road Small Spark-ignition Engine

作　　者：姚佳岩[1] 关强[1] 韩宁[1] 张丽莉[1] 

机构地区：[1]东北林业大学,哈尔滨150040

出　　处：《东北林业大学学报》2008年第6期61-62,共2页Journal of Northeast Forestry University

基　　金：交通部西部建设科技基金项目(2006318800068)

摘　　要：采用Pt-Rh催化器净化方法,并着重探讨了以降低NO排放为主的Pt-Rh催化器性能、排放温度、NO还原催化的性能和转化效率控制等问题。试验研究了Pt-Rh催化器的转化效果、其间的相互影响和作用,并提出相应的排放建议。结果表明:当贵金属Rh的加入量为30g时,Pt-Rh催化器可有效降低小型汽油机的NO排放量,最高转化效率达到48%,同时对HC、CO的排放也有一定的降解作用。The purification method for Rh-Pt catalytic converter was used to analyse the performance of the Rh-Pt catalytic converter, exhaust gas temperature, reduction catalytic capabilities of NO, and the control of conversion efficiency. The conversion effect of the Rh-Pt catalytic converter and the interaction were studied, and the corresponding suggestions on exhaust gas emission were also given. Rh-Pt catalyst can reduce NO exhaust emission greatly when the addition amount of the noble metal Rh is 30 g, and the conversion efficiency reaches 48%. Meanwhile, the exhaust emission of HC and CO can also be reduced.

关 键 词：小型汽油机 排放 催化器 转化效率 

分 类 号：U467.48[机械工程—车辆工程]