A review on purification processes developed domestically, such as NHD process, improved hot carbonate process, MDEA process, etc. and their application in ammonia plants are presented.

• 综述国内开发的聚醇醚(NHD)法、改进的热钾碱溶液法、MDEA法等净化技术,以及这些方法在合成氨等工厂的应用情况。