膜科学与技术

沸石分子筛膜苛刻环境有机物脱水的研究进展

作者：王金渠，杨建华，陈赞，殷德宏

单位：大连理工大学精细化工国家重点实验室吸附与无机膜研究所

关键词：渗透汽化；乙酸脱水；有机膜；沸石膜；杂化膜

出版年,卷(期):页码： 2011,31(3):118-126

摘要：

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。本文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，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。

Dehydration of organics in harsh conditions is highly demanded in industrials. Although the pervaporation dehydration of bio-ethanol using NaA zeolite membrane has been industrialized, the dehydration of organics in strong acidic conditions is only at the early-stage in international membrane community, facing key issues being the poor acid resistance and flow flux of the membrane. In the present review the international research advances in development of zeolite membranes for the dehydration of organic mixtures in acidic conditions were summarized. Especially our attempts and achievements in developments of high performance MOR and ZSM-5 zeolite membranes by novel approaches of functional defects repair and micro-structural optimization respectively for pervpaoration dehydration of acetic acid were shown. The future outlook of zeolite membrane for liquid molecular mixtures is also given

王金渠(1946-)，男，教授，江苏省南通市人，博士生导师，从事吸附与无机膜研究

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