Liquid-liquid equilibria of binary systems {benzene + [x-Mim][NTf2] ionic liquid}: Experimental data and thermodynamic modeling using a group contribution equation of state
Liquid–liquid equilibrium (LLE) data for binary mixtures {benzene (1) + ionic liquid (2)} were measured at atmospheric pressure from 293.15K to 333.15K. The ionic liquids (ILs) studied were 1-ethyl- and 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, ([EMim][NTf2] and [HMim][NTf2]). F...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2013 |
| País: | Argentina |
| Institución: | Consejo Nacional de Investigaciones Científicas y Técnicas |
| Repositorio: | CONICET Digital (CONICET) |
| Idioma: | inglés |
| OAI Identifier: | oai:ri.conicet.gov.ar:11336/26778 |
| Acceso en línea: | http://hdl.handle.net/11336/26778 |
| Access Level: | acceso abierto |
| Palabra clave: | 1-Alkyl-3-Methylimidazolium Bis(Trifluoromethylsulfonyl)Imide Ionic Liquids Lle And Vle Group Contribution Eqcuation of State Benzene https://purl.org/becyt/ford/2.4 https://purl.org/becyt/ford/2 |
| Sumario: | Liquid–liquid equilibrium (LLE) data for binary mixtures {benzene (1) + ionic liquid (2)} were measured at atmospheric pressure from 293.15K to 333.15K. The ionic liquids (ILs) studied were 1-ethyl- and 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide, ([EMim][NTf2] and [HMim][NTf2]). Furthermore, the group contribution equation of state (GC-EoS) was applied to model the phase behavior of mixtures of hydrocarbons with different members of the homologous family 1-alkyl-3- methylimidazolium bis(trifluoromethylsulfonyl)imide, [x-Mim][NTf2]. New pure group parameters for the ionic liquid functional group (MimNTf2) and interaction parameters between this group and the paraffin (CH3, CH2) and aromatic (ACH) groups are reported. The GC-EOS extended with the new parameters was applied to predict LLE and VLE of binary mixtures {benzene + x-MimNTf2} and LLE of ternary systems {n-hexane + benzene + [x-Mim][NTf2]}. The results show thatthe GC-EOS is capable of predicting the phase behavior of this kind of mixtures with reasonable accuracy. |
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