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.
作者
刘锋
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)
出处
《苏州科技大学学报（自然科学版）》
CAS
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)。
作者简介
刘锋(1974-),男,江西南昌人,正高级工程师,研究方向:水污染控制理论与技术,E-mail:278834585@qq.com。
