电渗析-真空膜蒸馏集成膜法回收离子液体

doi:10.11949/j.issn.0438-1157.20180217

化工学报 ›› 2018, Vol. 69 ›› Issue (9): 3905-3913.DOI: 10.11949/j.issn.0438-1157.20180217

电渗析-真空膜蒸馏集成膜法回收离子液体

刘燕¹, 夏天天^1,2, 孙位仕², 万印华², 沈飞², 邓会宁¹

1. 河北工业大学化工学院, 天津 300130;
2. 中国科学院过程工程研究所生化工程国家重点实验室, 北京 100190

收稿日期:2018-02-27 修回日期:2018-06-16 出版日期:2018-09-05 发布日期:2018-09-05
通讯作者: 刘燕, 沈飞
基金资助:
河北省重点研发计划国际科技合作专项项目（17393601D）。

Electrodialysis-vacuum membrane distillation integrated process to concentrate ionic liquids

LIU Yan¹, XIA Tiantian^1,2, SUN Weishi², WAN Yinhua², SHEN Fei², DENG Huining¹

1. Department of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China;
2. National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

Received:2018-02-27 Revised:2018-06-16 Online:2018-09-05 Published:2018-09-05
Supported by:
supported by the Hebei Province Key R & D Program of International Cooperation in Science and Technology Projects (17393601D).

摘要/Abstract

摘要：

为了达到最大限度回收离子液体循环再利用的目的，用电渗析-真空膜蒸馏集成膜法浓缩低浓度质量分数（下同）为1%~5%的离子液体水溶液，实现了有效可操作的膜集成浓缩过程控制。分析了膜集成过程中电渗析施加电压、料液初始浓度和料液体积比等操作参数对优化工艺的影响，获得了此电渗析过程的最高浓缩浓度。当电渗析可浓缩[AMIM]Cl至最大浓度时，即可切换至真空膜蒸馏过程深度浓缩，最终可将[AMIM]Cl水溶液浓缩至48.2%。

关键词: 电渗析, 真空膜蒸馏, 集成膜法, 回收, 离子液体, 浓度

Abstract:

To achieve the maximum recovery of ionic liquid recycling, the electrodialysis-vacuum membrane distillation integrated process was proposed to concentrate the low concentration mass fraction (the same below) in 1%-5% ionic liquid. It achieved effective and operational membrane integrated concentration control process. The influence of operating parameters in ED process, including voltage, initial concentration, and the volumetric feed ratio was analyzed and a maximum concentration was obtained. The[AMIM]Cl aqueous solution can be condensed to 48.2% after switched to the vacuum membrane distillation process.

Key words: electrodialysis, vacuum membrane distillation, integrated membrane process, recovery, ionic liquids, concentration

中图分类号:

TQ028.8

刘燕, 夏天天, 孙位仕, 万印华, 沈飞, 邓会宁. 电渗析-真空膜蒸馏集成膜法回收离子液体[J]. 化工学报, 2018, 69(9): 3905-3913.

LIU Yan, XIA Tiantian, SUN Weishi, WAN Yinhua, SHEN Fei, DENG Huining. Electrodialysis-vacuum membrane distillation integrated process to concentrate ionic liquids[J]. CIESC Journal, 2018, 69(9): 3905-3913.

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电渗析-真空膜蒸馏集成膜法回收离子液体

Electrodialysis-vacuum membrane distillation integrated process to concentrate ionic liquids

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