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沸石分子筛膜苛刻环境有机物脱水的研究进展

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Indexed by:期刊论文

Date of Publication:2011-06-25

Journal:膜科学与技术

Included Journals:PKU、ISTIC、CSCD

Volume:31

Issue:3

Page Number:118-126

ISSN No.:1007-8924

Key Words:渗透汽化;乙酸脱水;有机膜;沸石膜;杂化膜

Abstract:苛刻环境酸性条件下有机物的脱水在工业上有重大需求.尽管NaA沸石分子筛膜渗透蒸发在中性温和条件下乙醇等有机物脱水已经实现了工业化,但沸石分子筛膜有机酸的脱水或强酸性条件下(pH<3)的有机物的脱水在国际上刚刚起步,面临的关键技术问题是沸分子筛膜的耐酸性和膜的通量极低.对国际上酸性条件下有机物脱水沸石膜的研究现状进行了简要的概述和分析,介绍了功能化修补法高性能MOR沸石膜的研制等,及我们在这领域所做的各种尝试和取得的成果,指出沸石膜微结构的调控是高性能乙酸脱水分离膜制备的关键,对未来发展予以展望.

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