摘要
阐述了应用膜分离技术从聚丙烯尾气回收装置释放的不凝气中回收丙烯的基本原理 ,并就如何提高丙烯的回收率进行分析和探讨。在不凝气中丙烯的体积分数为 40 %～ 5 0 %,将膜气体分离系统用于从不凝气中回收丙烯 ,丙烯回收率可达 90 %。膜系统操作简单 ,占地少 ,且经济效益明显。
The basic principles of membrane technology for recovering propylene from uncondensable gas vented from recovery units of polypropylene off-Gas were described,and ways to improve propylene recovery analyzed and discussed.The uncondensable gas contained about 40%～50% of propylene.The vapor gas membrane separation system is able to recover over 90% of propylene from the uncondensable gas.Advantages of the membrane system are easy operation,limited space,and obvious economic benefit.
出处
《石油化工》
CAS
CSCD
北大核心
2002年第8期645-647,共3页
Petrochemical Technology
