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Pervaporation of Ethanol Aqueous Solution by Using Ionic Liquid Composite Membrane
Authors： LI Xueru1 , LV Quan1,, YIN Haiyan1, Zhang Jing1, FAN Wenling2, LI Lei1
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Units： 1.Department of Chemical Engineering，School of Chemistry and Chemical Engineering，Nanjing University，Nanjing 210093，Jiangsu，P.R. China; 2. College of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210029, Jiangsu，P.R. China
KeyWords： Ionic liquid; supported liquid membrane; blend membrane；pervaporation; separation performance
ClassificationCode：TQ028.8
year,volume(issue):pagination： 2012, 32(3):39-43

Abstract：

Ionic liquid(IL)[bmim]PF6 was introduced into membrane preparation process to form supported ionic liquid membrane(SILM) and PDMS-IL composite membrane. Pervaporation performance of the prepared membranes were measured and compared thoroughly in the process of ethanol removal from water. The effects of feed temperature, feed concentration and permeation pressure on pervaporation performance were investigated systematically. The experimental results showed that PDMS-IL composite membranes exhibited superior separation performance to common PDMS membrane, while unfortunately that of SILM was not satisfactory. Besides, permeation ?uxes of the membranes all increased with increasing temperature and concentration, whereas they decreased with ascending permeation pressure. Furthermore, separation factors descended with climbing temperature, concentration and permeation pressure.

Funds：
国家自然科学基金青年基金项目（No. 30801552）

AuthorIntro：
李雪茹(1987-），女，硕士研究生，主要研究方向为膜分离，籍贯河南。联系人 李磊,博士,副教授,主要从事膜分离技术研究。电话025-83596665;E-mail ll-nju@163.com；地址 江苏省南京市汉口路22号南京大学化工系

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