采用变压吸附技术与膜分离技术回收聚乙烯尾气中的轻烃  

Combination of pressure swing adsorption and membrane separation technologies to recover light hydrocarbons in polyethylene tail gas

作　　者：刘丽[1] 姜宏[1] 杨丽芸[1] 涂鸿[1] 刘晓阳 

机构地区：[1]四川天一科技股份有限公司,四川成都610225

出　　处：《天然气化工—C1化学与化工》2018年第1期89-91,共3页Natural Gas Chemical Industry

摘　　要：介绍了变压吸附技术和膜分离技术,比较了两种分离技术的优劣,通过这两种技术对聚乙烯装置尾气的回收应用效果,阐述了对于聚乙烯尾气中分子大小差异较大的烃类组分,采用2种分离技术结合处理降低了变压吸附吸附剂的负荷,有利于轻烃的回收。The pressure swing adsorption （PSA） and membrane separation technologies are introduced and their advantages and disadvantages are compared. Through the application effects of these two technologies in the tail gas recovery of polyethylene plants, the paper expounds that for the polyethylene tail gases containing the hydrocarbons with widely varying molecular sizes, combining PSA with membrane separation could reduce the adsorbent load of PSA, benefiting to light hydrocarbon recovery.

关 键 词：聚乙烯尾气 变压吸附法 膜分离法 轻烃 

分 类 号：TQ028[化学工程]