垃圾焚烧SCR脱硝催化剂的研究进展  

Research progress on application of SCR denitrification catalyst in waste incineration

作　　者：能士峰 刘庆岭[1] 张旺 王贺 王天昊 张亚威 昝文安 NAI Shi-feng;LIU Qing-ling;ZHANG Wang;WANG He;WANG Tian-hao;ZHANG Ya-wei;ZAN Wen-an(School of Environmental Science and Engineering,Tianjin University,Tianjin 300350,China;Tianjin TEDA Environmental Protection Co.,Ltd.,Tianjin 300350,China;Tianjin TEDA Co.,Ltd.,Tianjin 300457,China;Tianjin Bohai Environmental Protection Engineering Co.,Ltd.,Tianjin 300304,China)

机构地区：[1]天津大学环境科学与工程学院,天津300350 [2]天津泰达环保有限公司,天津300350 [3]天津泰达股份有限公司,天津300457 [4]天津渤海环保工程有限公司,天津300304

出　　处：《现代化工》2022年第2期31-34,共4页Modern Chemical Industry

摘　　要：选择性催化还原(SCR)作为一种实现氮氧化物超低排放的技术,在垃圾焚烧领域逐渐得到应用。SCR催化剂脱硝效率和使用寿命受到烟气温度、SO_(2)、H_(2)O、烟尘等多种因素的影响。经过脱酸和除尘后,垃圾焚烧烟气呈现低温、低酸、低尘、低重金属含量、高含水率的特点,研究发现烟气温度、SO_(2)、H_(2)O对催化剂脱硝效率和使用寿命都有较大影响,但SO_(2)影响最大,同时催化剂本身的催化活性、抗硫性能也是影响脱硝结果的关键因素。As a technology to achieve ultra-low NO_(x) emissions,selective catalytic reduction(SCR)has been gradually applied in the field of waste incineration.The denitrification efficiency and service life of SCR catalyst may be affected by many factors,such as flue gas temperature,SO_(2),H_(2)O and soot.After deacidification and dust removal,waste incineration flue gas has characteristics such as low temperature,low acid,low dust,low heavy metal content and high moisture content.It is found that the temperature of flue gas,SO_(2) and water all have large impact on the denitrification efficiency and service life of SCR catalyst,of which SO_(2) has the biggest impact.Meanwhile,the catalytic activity and sulfur resistance of SCR catalyst itself are also key factors affecting the denitrification results.

关 键 词：垃圾焚烧 脱硝 SCR NO_(x) 催化剂 

分 类 号：X511[环境科学与工程—环境工程]