Liquid-liquid equilibrium diagrams of ethanol + water + (ethyl acetate or 1-pentanol) at several temperatures

José M. Resa*, José M. Goenaga, Miguel Iglesias, Rafael Gonzalez-Olmos, Daniel Pozuelo

*Corresponding author for this work

Research output: Indexed journal article Articlepeer-review

35 Citations (Scopus)

Abstract

There are a great amount of substances found in the must distillations and at very low concentrations (called congeners). Other than that, ethanol and water are the major compounds. These facts make it difficult to simulate and optimize this industrial process. To extend the scarce knowledge of mixing thermodynamics related to these compounds, this paper contains the results of a new experimental study of liquid-liquid equilibrium (LLE) at temperatures of (298.15, 308.15, and 318.15) K for the ternary mixtures ethanol + water + (ethyl acetate or 1-pentanol) under atmospheric conditions. Ethyl acetate and 1-pentanol are important natural and legal congeners in common alcoholic distillation. A comparative analysis was performed, by application of different group contribution methods to predict experimental equilibria behavior of these mixtures. The experimental tie line data were correlated to test consistency with the Othmer-Tobias equation. Disposable literature was revised and commented upon.

Original languageEnglish
Pages (from-to)1300-1305
Number of pages6
JournalJournal of Chemical and Engineering Data
Volume51
Issue number4
DOIs
Publication statusPublished - 2006
Externally publishedYes

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