催化氧化脱硝(NO)研究进展  

Study Progress in Catalytic Oxidation Denitration(Removal NO)

作　　者：常玉 CHANG Yu

机构地区：[1]云南工贸职业技术学院化工与制药系,云南昆明650300

出　　处：《上海化工》2023年第3期46-49,共4页Shanghai Chemical Industry

摘　　要：氮氧化物(NO_(x),以NO为主)是导致光化学烟雾、酸雨和雾霾等一系列环境问题的主要大气污染物之一。NO氧化生成NO_(2)是消除NO_(x)的关键步骤。近年来,催化氧化吸收法脱除NO_(x)受到越来越多的关注。催化氧化脱除NO的催化剂研发和NO_(x)吸收过程强化的协同研究非常重要且意义重大。综述了近年来催化剂(贵金属类、金属氧化物类、分子筛类和活性炭基类)的研究进展及NO_(x)吸收过程强化技术,总结了不同催化剂的优缺点。Nitrogen oxides(NO_(x),mainly NO)are one of the main atmospheric pollutants that cause a series of environmental problems such as photochemical smog,acid rain,and haze.The catalytic oxidation of NO to generate NO_(2) is a key step in eliminating NO_(x).In recent years,catalytic oxidation absorption method for removing NO_(x) has attracted more and more attention.The collaborative research on the development of catalysts for catalytic oxidation to remove NO and the enhancement of NO_(x) absorption process is of great importance and significance.This article reviews the research progress of catalysts(including precious metals,metal oxides,molecular sieves,and activated carbon based catalysts)in recent years,as well as the enhancement techniques for NO_(x) absorption processes.It also summarizes advantages and disadvantages of different catalysts.

关 键 词：催化氧化 脱硝 氮氧化物 超重力技术 

分 类 号：X51[环境科学与工程—环境工程]