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NaX分子筛填充PDMS膜对丙烯/丙烷分离性能的研究

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Indexed by:期刊论文

Date of Publication:2009-02-25

Journal:化工时刊

Volume:23

Issue:2

Page Number:25-27,39

ISSN No.:1002-154X

Key Words:PPESK/PEI中空纤维;NaX/PDMS膜;丙烯/丙烷分离

Abstract:采用了对丙烯/丙烷有吸附选择性的NaX型分子筛填充PDMS,通过真空涂敷法涂敷至PPESK/PEI中空纤维基膜上,制备了NaX/PDMS中空纤维复合膜.研究了固化温度、固化时间、涂敷时间(抽真空时间)、NaX填充含量对丙烯/丙烷分离性能的影响.实验结果表明,室温下,在固化温度80℃,固化时间80 min,涂敷时间6 min,NaX填充含量30%时,复合膜对丙烯,丙烷的分离性能最佳,分离系数达到2.68.为丙烯/丙烷的分离提供了一种新的可能性,开辟了一条研制高性能丙烯/丙烷分离有机膜的新途径.

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