非热等离子体催化还原柴油机NO_(x)研究进展  

Review of diesel engine NO_(x) by non-thermal plasma catalytic reduction

作　　者：刘锋[1,2] 丁帅 张星 LIU Feng;DING Shuai;ZHANG Xing(School of Environmental Science and Engineering,SUST,Suzhou 215009,China;Municipal Wastewater Utilization Technology National Local Joint Engineering Laboratory,Suzhou 215009,China)

机构地区：[1]苏州科技大学环境科学与工程学院,江苏苏州215009 [2]城市生活污水资源化利用技术国家地方联合工程实验室,江苏苏州215009

出　　处：《苏州科技大学学报（自然科学版）》2023年第4期9-16,共8页Journal of Suzhou University of Science and Technology（Natural Science Edition）

基　　金：苏州市水利水务科技项目(2019006)。

摘　　要：柴油机NO_(x)对区域空气质量产生了多重环境效应。针对柴油机NO_(x)污染控制难题,论述了柴油机NO_(x)排放特征和控制技术,分析了氨气选择性催化还原(NH_(3)-SCR)反应机理,表明催化剂是NH_(3)-SCR系统的核心与关键。对SCR催化剂性能进行对比研究后,发现分子筛类SCR催化剂在重型柴油机NO_(x)净化方面展现广阔应用前景。通过介绍非热等离子体协同SCR催化柴油机NO_(x)技术进展,期望为促进柴油机NO_(x)控制和推动移动源尾气治理提供技术储备和理论支持。Diesel engine NO_(x) has multiple environmental impacts on regional air quality.For the problem of pollution control of diesel engine NO_(x),this paper explored the emission characteristics and control technologies of diesel engine NO_(x),and analyzed the reaction mechanism of NH3-SCR.The results show that the catalyst is the key of the NH3-SCR system.After a comparative study on the performance of the SCR catalyst,it is found that the molecular sieve-type SCR catalyst has a broad application prospect in the NO_(x) purification of heavy-duty diesel engine.By introducing the research progress of diesel engine NO_(x) by non-thermal plasma cooperating SCR catalyst,it is expected to provide technical reserve and theoretical support for promoting NO_(x) control of diesel engine and exhaust treatment of mobile source.

关 键 词：非热等离子体 选择性催化还原 柴油机NO_(x) 排放特征 SCR催化剂 

分 类 号：X511[环境科学与工程—环境工程]