用于船舶尾气NO_(x)治理的蜂窝状整体式NH_(3)-SCR催化剂研究进展  

Research progress on monolithic catalysts for selective catalytic reduction of marine NO_(x) removal

作　　者：郭铭玉 高婧 肖萌 牛可 赵英杰[1] 刘博群 崔少平 GUO Mingyu;GAO Jing;XIAO Meng;NIU Ke;ZHAO Yingjie;LIU Boqun;CUI Shaoping(Tianjin Research Institute for Water Transport Engineering,Key Laboratory of Environmental Protection Technology on Water Transport,Ministry of Transport,Tianjin 300456,China)

机构地区：[1]交通运输部天津水运工程科学研究所水路交通环境保护技术交通行业重点实验室,天津300456

出　　处：《水道港口》2024年第4期560-567,共8页Journal of Waterway and Harbor

基　　金：国家自然科学基金项目(52200128);天津市自然科学基金项目(23JCQNJC00500);中央级公益性科研院所科研创新基金项目(TKS20240302,TKS20230303,TKS20210203)。

摘　　要：随着船舶运输行业的蓬勃发展,船舶尾气带来的污染也愈发严重,氮氧化物(NO_(x))为其中主要污染物。氨气-选择性催化还原(NH_(3)-SCR)是目前最有效的脱硝方法,催化剂是技术的核心部分。整体式催化剂具有机械强度高和传热性能好等特点,是应用最广泛的商业催化剂。文章综述了用于NH_(3)-SCR的船舶整体式催化剂载体的预处理方法、挤出成型法和涂层涂覆法及其优缺点,重点总结了浆料涂覆法的涂覆式催化剂研究进展。船舶排放尾气成分复杂,二氧化硫、水蒸气、颗粒物等都会对NH_(3)-SCR催化剂产生不利影响,因此对催化剂耐中毒性能机理、催化剂的SCR活性和耐复杂污染物中毒性能进行了综合分析和总结。With the vigorous development of the shipping industry,the pollution caused by ship exhaust gases has become increasingly serious,with nitrogen oxides(NO_(x))being the primary pollutant.Selective catalytic reduction with NH_(3)(NH_(3)-SCR)is currently the most effective denitrification method,and the catalyst is the core component of the technology.Monolithic catalysts are the primary commercial catalysts,exhibiting characteristics of high mechanical strength and excellent heat transfer performance.The pre-treatment methods,extrusion molding methods,and coating methods for marine monolithic catalysts used for NH_(3)-SCR,as well as their advantages and disadvantages were reviewed.The research progress of slurry coating methods was emphatically summarized.The composition of marine exhaust emissions was complex,including SO_(2),H_(2)O,PM,among others,poses adverse effects on NH_(3)-SCR catalysts.This paper comprehensively analyzed and summarized the mechanism of catalyst poisoning,SCR activity,and complex gases poisoning resistance.

关 键 词：NH3-SCR 船舶尾气 整体式催化剂 浆料涂覆法 SCR活性 抗中毒性能 

分 类 号：U677[交通运输工程—船舶及航道工程]