Selective separation of aromatic hydrocarbons through supported liquid membranes based on ionic liquids
Selective separation of aromatic hydrocarbons through supported liquid membranes based on ionic liquids
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DOI：
10.1016/j.memsci.2004.08.013
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发表时间：
2005-01-01
影响因子：
9.5
通讯作者：
Kondo, K
中科院分区：
文献类型：
--
作者：
Matsumoto, M;Inomoto, Y;Kondo, K
离子液体作为挥发性有机化合物的替代溶剂，传统上用于液-液萃取和液膜分离。在本文中，我们研究是否室温离子液体作为膜溶液可以用于烃类分离，通过使用支撑液膜。芳烃、苯、甲苯和对二甲苯在该离子液体膜中的传质性能良好。虽然离子液体膜的渗透速率小于水膜，但芳烃的选择性大大提高。在芳烃渗透中使用苯，在液膜相中使用1-正丁基-3-甲基咪唑六氟磷酸盐，得到了最大的庚烷选择性。(C)2004 Elsevier B. V.保留所有权利。
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.