马双忱,郭蒙,宋卉卉,陈公达,杨洁红,藏斌,李钊

• 1:华北电力大学环境科学与工程学院

摘要(Abstract)：

论述了选择性催化还原(SCR)烟气脱硝过程中硫酸氢铵(ABS)的形成机理,并分析了温度、氨逃逸量、SO3浓度、飞灰等对ABS形成的影响规律。分析表明:ABS的形成温度为190~240℃;当温度在320~345℃时ABS为气相,当温度高于345℃时ABS开始分解;为减少ABS的生成量,可通过控制NH3/NOx摩尔比在0.8~1.2之间,以减少氨逃逸量,同时尽可能减少烟气中SO2氧化率;调节SCR工艺运行温度,控制ABS在催化剂中的沉积,可避免催化剂堵塞和腐蚀。

关键词(KeyWords)： 烟气脱硝;选择性催化还原;硫酸氢铵;氨逃逸;空气预热器

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 马双忱,郭蒙,宋卉卉,陈公达,杨洁红,藏斌,李钊

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