Abstract: Abstract:There are several typical technologies to evaporate ammonia water to prepare denitration deoxidizer, which include the steam stripping, the hot air evaporation, the hot flue gas evaporation in situ and others. These technologies were introduced. The principles, the advantage and the disadvantages of each technology and the matters needing attention were expounded. The results in this paper provide reference for selecting of denitration deoxidizer preparation technology.

Key words: Keywords:denitration deoxidizer, preparation, ammonia water, steam stripping, hot air evaporation, in situ hot flue gas evaporation