Solubility measurement and prediction of carbon dioxide in ionic liquids

被引：265

作者：

Kim, YS

Choi, WY

Jang, JH

Yoo, KP

Lee, CS ^{[1
]}

机构：

[1] Korea Univ, Dept Chem & Biol Engn, Seoul 136701, South Korea

[2] Sogang Univ, Dept Chem Engn, Seoul 121742, South Korea

来源：

FLUID PHASE EQUILIBRIA | 2005年 / 228卷

关键词：

data; method of calculation; vapor-liquid equilibria; ionic liquids; carbon dioxide;

D O I：

10.1016/j.fluid.2004.09.006

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Room temperature ionic liquids are receiving growing attentions as green solvents for reactions and separations. In particular, ionic liquids + carbon dioxide systems are of importance in the recovery of solutes in supercritical fluid extraction. Solubilities of carbon dioxide in ionic liquids, [bmim][PF6], [C(6)mim][PF6], [emim][BF4], [C(6)mim][BF4], [emim][Tf2N] and [C(6)mim][Tf2N], were experimentally studied at 298.15 K and up to 1 MPa in the present study. Present and literature data were fitted to determine group segment numbers and interaction energy parameters between groups for the group contribution non-random lattice-fluid equation of state. The agreements between data and calculated solubilities and densities were found generally good for ionic liquids with 1-alkyl-3-methylimidazolium cations and [PF6], [BF4] and [Tf2N] anions. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：439 / 445

页数：7

共 38 条

[1] Solubilities and thermodynamic properties of gases in the ionic liquid 1-n-butyl-3-methylimidazolium hexafluorophosphate [J].