船舶尾气脱硝方案的技术经济分析  

Technical and Economic Analysis of Marine Exhaust Gas Denitration Scheme

作　　者：向轶 吴迪 杨国华 李瑞华 苟远波 陈艳艳 XIANG Yi;WU Di;YANG Guo-hua;LI Rui-hua;GOU Yuan-bo;CHEN Yan-yan(China Coal Energy Research Institute Co.,Ltd.,Xi’an 710054,China;Xi’an Aerospace Yuan Dongli Engineering Co.,Ltd.,Xi’an 710100,China)

机构地区：[1]中煤能源研究院有限责任公司,陕西西安710054 [2]西安航天源动力工程有限公司,陕西西安710100

出　　处：《武汉船舶职业技术学院学报》2024年第4期79-82,92,共5页Journal of Wuhan Institute of Shipbuilding Technology

基　　金：中国航天科技集团有限公司第六研究院航天技术应用产业研发项目“第二代5De环保节能一体化技术”(项目编号:2019F0020YXTB);中国中煤能源集团有限公司重点科技项目“煤炭清洁利用烟气净化系统研究”(项目编号:17-37)。

摘　　要：为给船舶尾气氮氧化物的减排提供最优方案,介绍了三种可用于尾气处理的脱硝技术,并基于方案比选和效益测算的方式对可行性较高的船用SCR脱硝和臭氧氧化脱硝进行了技术经济分析。结果显示:SCR脱硝的运行成本体现在尿素消耗、电耗、淡水消耗、压缩空气消耗和催化剂更换上,总运行费用为107.3元/h;臭氧氧化脱硝的运行成本体现在电耗上,总运行费用为875.3元/h;SCR脱硝和臭氧氧化脱硝系统的电耗分别占柴油机总功率的0.46%和12.78%,即SCR对船舶供电系统的负担更小,且无废水产生。因此认为SCR脱硝用于船舶尾气治理时技术可行性高,经济性好。In order to provide the optimal scheme for the emission reduction of marine exhaust gas nitrogen oxide,the denitration technology used for ship exhaust gas treatment is compared,and the technical and economic analysis of the feasible marine SCR denitration and ozone oxidation denitration is made based on the method of scheme comparison and benefit calculation.The results showed that the operating cost of SCR denitration includes urea consumption,power consumption,fresh water consumption,compressed air consumption and catalyst replacement,and the total operating cost is 107.3 yuan/h.The operating cost of ozone oxidation denitration includes power consumption,and the total operating cost is 875.3 yuan/h.The power consumption of SCR denitration system and ozone oxidation denitration system accounts for 0.46%and 12.78%of the total power of diesel engine respectively.SCR denitration has less burden on the marine power supply system and no wastewater,and it is considered that SCR denitration is of high technical feasibility and good economy when used for marine exhaust gas treatment.

关 键 词：船舶尾气 NOx 脱硝 SCR 臭氧氧化 

分 类 号：X511[环境科学与工程—环境工程]