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

Autor:	Cyrus Ghotbi, Mahboubeh Rahmati-Rostami, Amir Hossein Jalili, Amir Naser Ahmadi, Masih Hosseini-Jenab
Rok vydání:	2009
Předmět:	Tetrafluoroborate General Chemical Engineering Enthalpy Inorganic chemistry General Chemistry Gibbs free energy chemistry.chemical_compound symbols.namesake chemistry Hexafluorophosphate Ionic liquid symbols Sour gas Physical chemistry Solubility Imide
Zdroj:	Journal of Chemical & Engineering Data. 54:1844-1849
ISSN:	1520-5134 0021-9568
Popis:	The solubility of hydrogen sulfide in three ionic liquids, 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF 6 ]), 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF 4 ]), and 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([bmim][Tf 2 N]), at temperatures ranging from (303.15 to 343.15) K and pressures up to 1 MPa was determined. The solubility data were correlated using the Krichevsky― Kasamovsky equation, and Henry's law constants at different temperatures were obtained. From the solubility data, the partial molar thermodynamic functions of solution such as Gibbs energy, enthalpy, and entropy were calculated. Comparison showed that the solubility of H 2 S in these three ionic liquids was in sequence: [bmim][Tf 2 N] > [bmim][BF 4 ] > [bmim][PF 6 ].
Databáze:	OpenAIRE
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