Application of a group contribution equation of state to model the phase behavior of mixtures containing alkanes and ionic liquids
In this work, the group contribution equation of state (GC-EoS) of Skjold-Jørgensen was used to model the phase behavior of mixtures of alkanes with different members of the homologous family 1-alkyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide, [x-Mpyr][NTf2] ionic liquids. Pure group pa...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/13463 |
| Acceso en línea: | http://hdl.handle.net/11336/13463 |
| Access Level: | acceso abierto |
| Palabra clave: | 1-Alkyl-1-Methylpyrrolidinium Bis (Trifluoromethylsulfonyl)Imide Ionic Liquids Alkanes Phase Behavior Group-Contribution Equation of State https://purl.org/becyt/ford/2.4 https://purl.org/becyt/ford/2 |
| Sumario: | In this work, the group contribution equation of state (GC-EoS) of Skjold-Jørgensen was used to model the phase behavior of mixtures of alkanes with different members of the homologous family 1-alkyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide, [x-Mpyr][NTf2] ionic liquids. Pure group parameters for the ionic liquid functional group (MpyrNTf2) and interaction parameters between this group and the paraffin main group (sub-groups CH3 and CH2) were obtained from activity coefficients at infinite dilution found in literature for binary mixture {alkane + [x-Mpyr][NTf2] ionic liquid}. The GC-EoS of Skjold-Jørgensen, extended with these new parameters, was applied to predict with satisfactory results the phase behavior of binary mixtures {alkane + [x-Mpyr][NTf2]}. In order to evaluate the GC-EoS performance in the prediction of liquid?liquid equilibria (LLE), experimental LLE data for binary mixtures {hexane, or heptane, or octane, or nonane, or decane +1-butyl-1-ethylpyrrolidinium bis(trifluoromethylsulfonyl) imide, [BMpyr][NTf2]} were determined from T = (293.15 to 333.15)K |
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