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Author(s): Noélia Calvar
Elena Gómez
Begoña González
Ángeles Domínguez
Title: Experimental vapor-liquid equilibria for the ternary system ethanol + water + 1-ethyl-3-methylpyridinium ethylsulfate and the corresponding binary systems at 101.3 kPa: Study of the effect of the cation
Issue Date: 2010
Abstract: A study on the isobaric vapor-liquid equilibria of the ternary system containing the ionic liquid 1-ethyl-3-methylpyridinium ethylsulfate (EMpyESO4) and the azeotropic mixture ethanol + water is presented inthis work. Experimental isobaric vapor-liquid equilibrium of the ternary system ethanol + water +EMpyESO4 was determined at 101.3 kPa, together with the vapor-liquid equilibria of the binary systemsethanol + EMpyESO4 and water + EMpyESO4. The experimental data obtained from the binary vapor-liquidequilibria were correlated using the NRTL and e-NRTL equations. The NRTL equation was also used tocorrelate the experimental vapor-liquid equilibrium of the ternary system. With the parameters obtainedfrom these correlations, the evolution of the azeotrope ethanol + water with different amounts of ionicliquid can be studied. The results obtained were compared with the isobaric vapor-liquid equilibria data ofthe system containing this azeotropic mixture with the ionic liquid 1-ethyl-3-methylimidazolium ethylsulfate.
Subject: Ciências Tecnológicas, Ciências da engenharia e tecnologias
Technological sciences, Engineering and technology
Scientific areas: Ciências da engenharia e tecnologias
Engineering and technology
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:FEUP - Artigo em Revista Científica Internacional

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