聚丙烯生产过程中尾气回收系统(单元设备)的应用比较

Comparison of Off Gas Recovery System Used in Polypropylene Production

探讨了聚丙烯装置排放尾气回收的两种系统:压缩冷凝法和膜回收法。论述了这两种方法在工艺路线、设备选用、投资和经济效益等方面的异同点,得出了膜回收法优于压缩冷凝法的结论。

Two systems of retrieving off gas in Polypropylene plant - compression condensation and membrane recovery were discussed in this article. The similarities and differences between these two systems in the aspects of process, equipment selection, invest and economic profit were described. It was concluded that membrane recovery system is better than compression condensation recovery system.