Propylene recovery at a rate above 85% from the non-condensable gas released from polypropylene plant was carried out with membraneseparation technique.
应用膜分离技术，回收聚丙烯装置排空不凝气中的丙烯，回收率在85%以上。
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This paper outlined the membraneseparation technology and analyzed the application status of the technology in the propylene-nitrogen system of the polypropylene (pp) plant.