烟气脱硝还原剂制备工艺及应用进展  

Preparation Technology and Application Progress of Flue Gas Denitration Reducing Agent

作　　者：贾心倩 JIA Xin-qian(Fujian Huadian Shaowu Energy Co.,Ltd., Nanping 354000,China)

机构地区：[1]福建华电邵武能源有限公司,南平354000

出　　处：《应用能源技术》2020年第9期7-9,共3页Applied Energy Technology

摘　　要：选择性催化还原脱硝法(SCR)是当前世界上烟气脱硝技术的主流,具有效率高、应用广泛、经济合理等优点。文中系统的介绍了SCR烟气脱硝技术还原剂氨气的制备原料(液氨、氨水、尿素)。并指出尿素作为原料比液氨、氨水安全性更高,具有较高的推广价值。尿素工艺又分为热解法和水解法,并分析比较了各方法优缺点,指出尿素制氨工艺是SCR烟气脱硝技术的发展趋势。Selective catalytic reduction denitration(SCR)is currently the mainstream of flue gas denitration technology in the world.It has the advantages of high efficiency,wide application and reasonable economy.This paper systematically introduces the raw materials(liquid ammonia,ammonia water,urea)of the SCR flue gas denitrification technology reducing agent ammonia.It is also pointed out that urea as a raw material is safer than liquid ammonia and ammonia water,and has a higher promotion value.The urea process is divided into pyrolysis method and hydrolysis method,and the advantages and disadvantages of each method are analyzed and compared.It is pointed out that the urea ammonia production process is the development trend of SCR flue gas denitration technology.

关 键 词：SCR烟气脱硝技术 尿素热解法 尿素水解法 

分 类 号：X701[环境科学与工程—环境工程]