Solubility of CO2 in 1-(2-hydroxyethyl)-3-methylimidazolium ionic liquids with different anions

被引：101

作者：

Jalili, Amir Hossein ^{[1
]}

Mehdizadeh, Ali ^{[1
]}

Shokouhi, Mohammad ^{[1
]}

Sakhaeinia, Hossein ^{[2
]}

Taghikhani, Vahid ^{[3
]}

机构：

[1] NIOC, RIPI, Gas Res Div, Gas Sci Dept, Tehran, Iran

[2] Islamic Azad Univ, Dept Chem Engn, Fac Engn, Semnan, Iran

[3] Sharif Univ Technol, Dept Chem & Petr Engn, Tehran, Iran

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2010年 / 42卷 / 06期

关键词：

Gas solubility; Henry's law constant; Carbon dioxide; Ionic liquid; Gibbs free energy of solution; PRESSURE PHASE-BEHAVIOR; CARBON-DIOXIDE; SYSTEMS;

D O I：

10.1016/j.jct.2010.02.002

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The solubility of carbon dioxide in a series of 1-(2-hydroxyethyl)-3-methylimidazolium ([hemim](+)) based ionic liquids (ILs) with different anions, viz. hexafluorophosphate ([PF6](-)), trifluoromethanesulfonate ([OTf](-)), and bis-(trifluoromethyl)sulfonylimide ([Tf2N](-)) at temperatures ranging from 303.15 K to 353.15 K and pressures up to 1.3 MPa were determined. The solubility data were correlated using the Krichevsky-Kasarnovsky equation and Henry's law constants were obtained at different temperatures. Using the solubility data, the partial molar thermodynamic functions of solution such as Gibbs free energy, enthalpy, and entropy were calculated. Comparison showed that the solubility of CO2 in the ILs studied follows the same behaviour as the corresponding conventional 1-ethyl-3-methylimidazolium ([emim](+)) based ILs with the same anions, i.e. [hemim][NTf2] > [hemim][OTf] > [hemim][PF6] > [hemim][BF4]. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：787 / 791

页数：5

共 28 条

[1]

[Anonymous], ORG PROCESS RES DEV

[2] CO2 capture by a task-specific ionic liquid [J].

Bates, ED ;

Mayton, RD ;

Ntai, I ;

Davis, JH .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (06) :926-927

[3] High-pressure phase behavior of ionic liquid/CO2 systems [J].

Blanchard, LA ;

Gu, ZY ;

Brennecke, JF .

JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (12) :2437-2444

[4] Diffusion and solubility measurements in room temperature ionic liquids [J].

Camper, D ;

Becker, C ;

Koval, C ;

Noble, R .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2006, 45 (01) :445-450

[5] Gas solubilities in room-temperature ionic liquids [J].

Camper, D ;

Scovazzo, P ;

Koval, C ;

Noble, R .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2004, 43 (12) :3049-3054

[6] High pressure phase behavior of carbon dioxide in 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ionic liquids [J].

Carvalho, Pedro J. ;

Alvarez, Victor H. ;

Machado, Jose J. B. ;

Pauly, Jerome ;

Daridon, Jean-Luc ;

Marrucho, Isabel M. ;

Aznar, Martin ;

Coutinho, Joao A. P. .

JOURNAL OF SUPERCRITICAL FLUIDS, 2009, 48 (02) :99-107

[7] Efficient combination of task-specific ionic liquid and microwave dielectric heating applied to one-pot three component synthesis of a small library of 4-thiazolidinones [J].

Fraga-Dubreuil, J ;

Bazureau, JP .

TETRAHEDRON, 2003, 59 (32) :6121-6130

[8] Low-pressure solubilities and thermodynamics of solvation of eight gases in 1-butyl-3-methylimidazolium hexafluorophosphate [J].

Jacquemin, J ;

Husson, P ;

Majer, V ;

Gomes, MFC .

FLUID PHASE EQUILIBRIA, 2006, 240 (01) :87-95

[9] Solubility of H2S in Ionic Liquids [bmim][PF6], [bmim][BF4], and [bmim][Tf2N] [J].

Jalili, Amir Hossein ;

Rahmati-Rostami, Mahboubeh ;

Ghotbi, Cyrus ;

Hosseini-Jenab, Masih ;

Ahmadi, Amir Naser .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2009, 54 (06) :1844-1849

[10] Solubility measurement and prediction of carbon dioxide in ionic liquids [J].

Kim, YS ;

Choi, WY ;

Jang, JH ;

Yoo, KP ;

Lee, CS .

FLUID PHASE EQUILIBRIA, 2005, 228 :439-445

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