离子液体二氧化碳分离膜研究进展.pdf

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CHEMICAL INDUSTRY AND ENGINEERING PROGRESS
2014年第33卷第12期
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进展与述评
离子液体二氧化碳分离膜研究进展
赵薇',贺高红2,刘红晶,李凤华,张莹
(沈阳工业大学石油化工学院,辽宁辽阳11103;2大连理工大学精细化工国家重点实验室,辽宁大连
116012)
摘要:离子液体支撑液膜在較大跨膜压差(0.25~0.3MPa)下的稳定性较差,具有较好稳定性的聚离子液体膜和
离子液体-聚合物共混膜等逐渐被关注。本文综述了离子液体支撑液膜、聚离子液体膜、离子液体一聚合物共混膜
等离子液体膜CO2分离性能、分离机理及稳定性的最新研究进展,介绍了无机颗粒-离子液体-聚合物共混膜的研
究现状。指出离子液体膜的高CO2渗透通量与高稳定性之间的矛盾、共混膜结枃调控难等问题是其エ业化应用
的主要障碍,提出开发新的膜材料、改进制膜工艺以减小膜厚、优化膜结构是提高膜的CO2渗透和分离性能,
并保持膜稳定性的有效途径。无机颗粒-离子液体聚合物共混膜兼有较高的CO2分离性能和较好稳定性,具有良
好的应用前景,对其制备方法、结构、性能及CO2分离杋理的研究将成为这一领城的热点
关键词:离子液体;膜;二氧化碳捕集;稳定性;支撑液;聚离子液体;共混膜
中图分类号:TQ028.8
文献标志码:A
文章编号:1000~6613(2014)12-3292-08
DOI:10.3969/isn.1000-6613.2014.12.026
Developments in ionic liquid membranes for CO2 separation
ZHAO Wei, HE Gaohong LIU Hongiing, LI Fenghua, ZLIANG Ying
n State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012, Liaoning, Chin/ o
College of Petrochemical Engineering, Shenyang University of Technology, Liaoyang 111003, Liaoning, Ch
Abstract: Supported ionic liquid membrane(SILM) has relatively low stability at high
cross-membrane pressure difference (0.25 0.3MPA).Polymerized ionic liquid membrane and ionic
liquid - polymer mixed membrane can eliminate the instability problem of the SILM. This review
presented a summary on the latest developments in the research of SILM, polymerized ionic liquid
membrane and ionic liquid -polymer mixed membrane used for CO2 separation with respect to the
separation performance, transport mechanism and stability. The research on a three-component
mixed-matrix membrane, inorganic particle-ionic liquid-polymer mixed membrane, by dispersing
inorganic nano-particles in polymer matrix containing ionic liquid was also introduced. It was indicated
that the challenges for the ionic liquid membranes technologies applied on an industrial scale include
the trade-off between high CO2 permeation rate and high stability, and the difficulties with the
structural arrangement of the mixed membrane. Significant improvements of the separation
performance and stability of the ionic liquid membranes can be achieved by developing new membrane
materials, improving membrane fabrication techniques to reduce membrane thickness and optimize
membrane structure. Inorganic particle- ionic liquid -polymer mixed membrane showed a good
prospect in CO2 separation for its higher separation performance combining with better stability. The
study on the fabrication, structure, separation performance and mechanism of the new type of
收稿日期:2014-04-22;修改稿日期:2014-05-26。
方向为化学工程和膜分离技术。E-mailzhaowei(@sut.edu.cn。
第一作者及联系人:赵薇(1969~),女,博士,副教授,主要研究