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Author(s): Susana B. Bottini
Emilio J. González
Eugénia A. Macedo
Title: Application of a group contribution equation of state to model the phase behavior of mixtures containing alkanes and ionic liquids
Issue Date: 2015
Abstract: In this work, the group contribution equation of state (GC-EoS) of Skjold-Jorgensen 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 (MpyrNTf(2)) 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-Jorgensen, 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 (LIE), experimental LLE data for binary mixtures {hexane, or heptane, or octane, or nonane, or decane +1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide, [BMpyr][NTf2]) were determined from T=(293.15 to 333.15)K.
Subject: Ciências Tecnológicas, Ciências da engenharia e tecnologias
Technological sciences, Engineering and technology
Scientific areas: Ciências da engenharia e tecnologias
Engineering and technology
Related Information: info:eu-repo/grantAgreement/FCT - Fundação para a Ciência e Tecnologia/Projetos Estratégicos/PEst-C/EQB/LA0020/2013/PROJECTO ESTRATÉGICO - LA 20 - 2013-2014/LA 20
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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