Measurement and prediction of vapor−liquid equilibrium of aqueous 1-ethyl-3-methylimidazolium-based Ionic liquid systems / Luke D. Simoni in Industrial & engineering chemistry research, Vol. 49 N° 8 (Avril 2010)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 49 N° 8 (Avril 2010) . - pp. 3893–3901 Titre : Measurement and prediction of vapor−liquid equilibrium of aqueous 1-ethyl-3-methylimidazolium-based Ionic liquid systems Type de document : texte imprimé Auteurs : Luke D. Simoni, Auteur ; Lindsay E. Ficke, Auteur ; Caitlin A. Lambert ,, Auteur Année de publication : 2010 Article en page(s) : pp. 3893–3901 Note générale : Industrial Chemistry Langues : Anglais (eng) Mots-clés : Measurement Prediction Vapor−  Liquid Equilibrium Aqueous Ethy methylimidazolium Ionic Liquid Résumé : Isothermal vapor−liquid equilibria were determined for two binary ionic liquid + water systems, from 323.3 to 368.2 K, and water mole fractions greater than 0.5. The ionic liquids used were 1-ethyl-3-methylimidazolium trifluoromethanesulfonate and 1-ethyl-3-methylimidazolium trifluoroacetate. In addition, predictive thermodynamic modeling of the vapor−liquid equilibrium was performed by correlating the nonrandom two-liquid,(39) universal quasi-chemical,(40) and electrolyte-NRTL(41) models to previously measured excess enthalpy and infinite dilution activity coefficient data from the literature. For each of the systems studied at least two of the models provided adequate predictions of vapor pressure and water activity coefficients. The good predictions of vapor−liquid equilibria by these common activity coefficient models lead us to favor excess enthalpy and infinite dilution activity coefficient data over vapor−liquid equilibria data, since predictions of excess enthalpies from vapor−liquid equilibria are not satisfactory. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9017868 [article] Measurement and prediction of vapor−liquid equilibrium of aqueous 1-ethyl-3-methylimidazolium-based Ionic liquid systems [texte imprimé] / Luke D. Simoni, Auteur ; Lindsay E. Ficke, Auteur ; Caitlin A. Lambert ,, Auteur . - 2010 . - pp. 3893–3901. Industrial Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 8 (Avril 2010) . - pp. 3893–3901 Mots-clés : Measurement Prediction Vapor−  Liquid Equilibrium Aqueous Ethy methylimidazolium Ionic Liquid Résumé : Isothermal vapor−liquid equilibria were determined for two binary ionic liquid + water systems, from 323.3 to 368.2 K, and water mole fractions greater than 0.5. The ionic liquids used were 1-ethyl-3-methylimidazolium trifluoromethanesulfonate and 1-ethyl-3-methylimidazolium trifluoroacetate. In addition, predictive thermodynamic modeling of the vapor−liquid equilibrium was performed by correlating the nonrandom two-liquid,(39) universal quasi-chemical,(40) and electrolyte-NRTL(41) models to previously measured excess enthalpy and infinite dilution activity coefficient data from the literature. For each of the systems studied at least two of the models provided adequate predictions of vapor pressure and water activity coefficients. The good predictions of vapor−liquid equilibria by these common activity coefficient models lead us to favor excess enthalpy and infinite dilution activity coefficient data over vapor−liquid equilibria data, since predictions of excess enthalpies from vapor−liquid equilibria are not satisfactory. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie9017868

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