Selective separation of aromatic hydrocarbons through supported liquid membranes based on ionic liquids

被引：148

作者：

Matsumoto, M ^{[1
]}

Inomoto, Y ^{[1
]}

Kondo, K ^{[1
]}

机构：

[1] Doshisha Univ, Dept Chem Engn & Mat Sci, Kyotanabe, Kyoto 6100321, Japan

来源：

JOURNAL OF MEMBRANE SCIENCE | 2005年 / 246卷 / 01期

关键词：

ionic liquids; supported liquid membrane; aromatic hydrocarbons; green solvent;

D O I：

10.1016/j.memsci.2004.08.013

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Ionic liquids are emerging as alternative solvents for volatile organic compounds traditionally used in liquid-liquid extraction and liquid membrane separation. In this paper, we examine whether room-temperature ionic liquids as a membrane solution can be utilized for hydrocarbon separation by using a supported liquid membrane. Aromatic hydrocarbons, benzene, toluene and p-xylene were successfully transported through the membrane based on the ionic liquids. Although the permeation rates through the membrane based on the ionic liquids were less than those of water, the selectivity of aromatic hydrocarbons was greatly improved. The maximum selectivity to heptane was obtained using benzene in the aromatic permeation and 1-n-butyl-3-methylimidazolium hexafluorophosphate in the liquid membrane phase. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：77 / 81

页数：5

共 21 条

[1] Odor as an Aid to Chemical Safety: Odor Thresholds Compared with Threshold Limit Values and Volatilities for 214 Industrial Chemicals in Air and Water Dilution [J].