摘要
氮氧化物是主要的大气污染物之一,柴油机的排放对我国机动车NO_x排放的起主导作用,控制柴油机尾气中NO_x的排放,有利于优化大气环境质量。仅靠机内控制技术很难完全控制氮氧化物(NO_x)的排放,为满足日益严格的排放法规要求,机外控制技术是目前研究的重点。本文讲述了柴油机尾气中氮氧化物(NO_x)的生成机理,综述了去除氮氧化物(NO_x)的催化剂历程,并总结性的指出了发展方向。
Nitrogen oxide is one of main components of air pollutants. The exhaust emission of diesel engine plays a leading role in the NO_x emission of motor vehicles in China. Controlling NO_x emission of diesel engine is helpful to improve atmospheric environment quality in China. It is difficult to completely control nitrogen oxides（NO_x） emission only by internal control technology. In order to meet increasingly stringent emission regulation requirements, external control technology is the focus of current research. In this paper, the formation mechanism of nitrogen oxides（NO_x） in diesel exhaust was described. The history of catalysts for removal of nitrogen oxides（NO_x） was reviewed. At last, the development direction of catalysts for removal of nitrogen oxides was pointed out.
作者
刘光文
刘柳成林
杨晓桐
潘发存
LIU Guang-wen;LIU Liu-cheng-lin;YANG Xiao-tong;PAN Fa-cun(Guangxi Huihuang Langjie Environmental Protection and Technology Co.,Ltd.,Guangxi Nanning 530000,China;College of Mechanical Engineering,Guangxi University,Guangxi Nanning 530004,China)
出处
《辽宁化工》
CAS
2018年第7期662-667,共6页
Liaoning Chemical Industry
