Diffusivity and solubility of carbonyl sulfide and sulfur dioxide in 1-ethyl-3-methylimidazolium bis (trifluoromethyl) sulfonylimide ([emim][Tf2N]): Experimental measurement and modelling
Shokouhi, M.[Mohammad], Saali, A. H.[Amir Hossein], Vahidi, M.[Mehdi], Zoghi, A. T.[Ali Taghi], Jalili, A. H.[Amir Hossein]
The diffusivity and solubility of carbonyl sulfide at temperatures from (313.15 to 353.15) K and pressures up to about 1.0 MPa and also the solubility of sulfur dioxide at the same temperatures and low pressures ranges in ionic liquid 1-ethyl-3-methylimidazolium bis(trifluoromethyl) sulfonylimide ([emim][Tf2N]) were experimentally investigated. The solubility was measured using a volumetric-base static apparatus and acid gas diffusivity was obtained using the Semi-infinite volume method with low initial pressure. Using the solubility data, Henry s law constants at different temperatures, and the partial molar thermodynamic properties of solution, that is, Gibbs energy, enthalpy, and entropy were calculated. The solubility data were correlated using 1) the generic Redlich Kwong (GRK) cubic equation of state approaches and 2) the extended Henry s law combined with the Pitzer s virial expansion for the excess Gibbs energy. Finally using solubility data regression has been done with the generic Redlich Kwong (GRK) cubic equation of state, the precision of experimental solubility data has been inspected via thermodynamic consistency test.
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.