船舶尾气选择性催化还原脱硝中试平台的设计与应用  

Design and Application of a Pilot-Scale System for Selective Catalytic Reduction(SCR)of NOx from Marine Diesel Engines

作　　者：竺新波 吴洪云 陈耿[1] 洪瑜 杨国华[1] 马奕飞 Zhu Xinbo;Wu Hongyun;Chen Geng;Hong Yu;Yang Guohua;Ma Yifei(Ningbo University,Ningbo 315832,China;Ningbo Energy Group Co.,Ltd.,Ningbo 315000,China)

机构地区：[1]宁波大学,浙江宁波315832 [2]宁波能源集团股份有限公司,浙江宁波315000

出　　处：《广东化工》2024年第15期169-172,共4页Guangdong Chemical Industry

基　　金：国家自然科学基金项目(51976093);“教育部高等学校交通运输类专业教学指导委员会航海技术教学指导分委员会教育教学改革研究项目(2022jzw005)”;浙江省线上线下混合式一流课程:船舶主推进动力装置;中国交通教育研究会2022~2024年度交通教育科学研究课题(JT2022YB054);2024年宁波大学教研项目(JYXM2024015)。

摘　　要：目前船舶尾气已成为我国除燃煤电厂、工业源和机动车之外的主要大气污染源,其污染防治也是全社会关注的热点。针对船舶尾气中的主要污染物氮氧化物(NO_(x)),设计了一套基于选择性催化还原方法的船舶柴油机尾气脱硝中试平台。该平台由船舶柴油机、催化剂模块、还原剂供给系统和尾气检测模块等四部分构成,可开展船舶柴油机不同工况下的排放特性测试、还原剂供给与混合和氮氧化物脱除等教学与探索性实验。该平台有助于船舶与海洋工程专业的学生在船舶大气污染减排的国家政策背景下,强化对船舶主推进动力装置、燃烧学、流体力学和环境催化等专业课的理解,掌握船舶尾气减排领域的系统设计与优化方法,培养其解决复杂工程问题的实践能力和创新意识。At present,marine sources have become one of the major sources of air pollution in China,besides coal-fired power plants,industries and on-road vehicles.Thus,the air pollution control from ships has attracted great attention.In this work,a pilot-scale system based on selective catalytic reduction(SCR)of NO_(x) was designed for the purification of marine diesel effluent.The system is composed of four main parts:the marine diesel engine,the SCR reactor,reductant supply system and exhaust gas measurement module,which could be used for both teaching and exploratory experiments such as the measurement of pollutant emission characteristics,reductant pyrolysis and mixing,nitrogen oxide removal and characteristics of particulate matter deposition under different working conditions of the engine.The relevant experiments will help the undergraduate and postgraduate students of ship and ocean engineering to strengthen their understanding of the knowledge from the courses of marine main propulsion power system,combustion theory,fluid mechanics and environmental catalysis under the background of ship air pollution control,and to master the system design and optimization methods in the field of marine exhaust emission control.As a result,their practical ability and innovative consciousness would be greatly improved to solve the complex engineering problems in their future career.

关 键 词：船舶尾气 大气污染 选择性催化还原 氮氧化物 

分 类 号：TQ032[化学工程]