Solubility of carbon dioxide in 1-ethyl-3-methylimidazolium 2-(2-methoxyethoxy) ethylsulfate

被引：42

作者：

Soriano, Allan N. ^{[1
]}

Doma, Bonifacio T., Jr. ^{[2
]}

Li, Meng-Hui ^{[1
]}

机构：

[1] Chung Yuan Christian Univ, Dept Chem Engn, R&D Ctr Membrane Technol, Chungli 32023, Taiwan

[2] Mapua Inst Technol, Sch Chem Engn & Chem, Manila, Philippines

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2008年 / 40卷 / 12期

关键词：

Carbon dioxide; Absorption; Equilibrium solubility; 1-Ethyl-3-methylimidazolium; 2-(2-methoxyethoxy) ethylsulfate;

D O I：

10.1016/j.jct.2008.07.003

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Experimental results for the solubility of carbon dioxide in the ionic liquid 1-ethyl-3-methylimidazolium 2-(2-methoxyethoxy) ethylsulfate are not reported in the literature. To this end, we present in this work new solubility data for carbon dioxide in 1-ethyl-3-methylimidazolium 2-(2-methoxyethoxy) ethylsulfate for temperatures ranging from (303.2 to 343.2) K and pressures up to 6.7 MPa using a thermogravimetric microbalance. The carbon dioxide solubility was determined from absorption saturation (equilibrium) data at each fixed temperature and pressure. The buoyancy effect was accounted in the evaluation of the carbon dioxide solubility. Highly accurate equations of states for carbon dioxide and for ionic liquids were employed to determine the effect of buoyancy on carbon dioxide solubility. The solubility measurements are presented as a function of temperature and pressure. The present experimental solubility results have been successfully correlated using an extended Henry's law equation. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1654 / 1660

页数：7

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