Solubility of H2S in ionic liquids [hmim][PF6], [hmim][BF4], and [hmim][Tf2N]

被引：144

作者：

Rahmati-Rostami, Mahboubeh ^{[2
]}

Ghotbi, Cyrus ^{[2
]}

Hosseini-Jenab, Masih ^{[1
]}

Ahmadi, Amir Naser ^{[1
]}

Jalili, Amir Hossein ^{[1
]}

机构：

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

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

来源：

JOURNAL OF CHEMICAL THERMODYNAMICS | 2009年 / 41卷 / 09期

关键词：

Gas solubility; Henry's constant; Hydrogen sulphide; Ionic liquid; Gibbs free energy of solvation; CARBON-DIOXIDE; HYDROGEN; CO2;

D O I：

10.1016/j.jct.2009.04.014

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The solubility of hydrogen sulphide in three ionic liquids, viz. 1-hexyl-3-methylilmidazolium hexafluorophosphate ([hmim][PF6]), 1-hexyl-3-methylimidazolium tetrafluoroborate ([hmim][BF4]), and 1-hexyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([hmim][Tf2N]), at temperatures ranging from 303.15 K to 343.15 K and pressures up to 1.1 MPa were determined. The solubility values were correlated using the Krichevsky-Kasarnovsky equation and Henry's constants were obtained at different temperatures. Partial molar thermodynamic functions of solvation such as standard Gibbs free energy, enthalpy, and entropy were calculated from the solubility results. Comparison of the values obtained show that the solubility of H2S in these three ionic liquids was in the sequence: [hmim][BF4] > [hmim][PF6], approximate to [hmim][Tf2N]. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1052 / 1055

页数：4

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