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

• Type: Article in International Scientific Journal
• Date: 2010

Authors

Noélia Calvar (Author) FEUP; Elena Gómez (Author) FEUP; Begoña González (Author) FEUP; Ángeles Domínguez (Author) Other

Journal

Title: Journal of Chemical & Engineering Data

Vol. 55 No. 8

Pages: 2786-2791

ISSN: 0021-9568

Publisher: American Chemical Society

Indexing

ISI Web of Knowledge - 28 Citations

ISI Web of Science

Scopus - 20 Citations

COMPENDEX

Scientific classification

FOS: Engineering and technology

CORDIS: Technological sciences

Other information

Authenticus ID: P-003-4DA

DOI: 10.1021/je900998f

Abstract (EN): 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 in this 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 systems ethanol + EMpyESO4 and water + EMpyESO4. The experimental data obtained from the binary vapor-liquid equilibria were correlated using the NRTL and e-NRTL equations. The NRTL equation was also used to correlate the experimental vapor-liquid equilibrium of the ternary system. With the parameters obtained from these correlations, the evolution of the azeotrope ethanol + water with different amounts of ionic liquid can be studied. The results obtained were compared with the isobaric vapor-liquid equilibria data of the system containing this azeotropic mixture with the ionic liquid 1-ethyl-3-methylimidazolium ethylsulfate.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6