Vapor–Liquid Equilibrium of Ethyl Lactate Highly Diluted in Ethanol–Water Mixtures at 101.3 kPa. Experimental Measurements and Thermodynamic Modeling Using Semiempirical Models

Cristian Puentes; Xavier Joulia; Patrice Paricaud; Pierre Giampaoli; Violaine Athès; Martine Esteban-Decloux

Vapor–Liquid Equilibrium of Ethyl Lactate Highly Diluted in Ethanol–Water Mixtures at 101.3 kPa. Experimental Measurements and Thermodynamic Modeling Using Semiempirical Models

Cristian Puentes ¹ Xavier Joulia ² Patrice Paricaud ³ Pierre Giampaoli ¹ Violaine Athès ⁴ Martine Esteban-Decloux ¹

1 GENIAL - Ingénierie, Procédés, Aliments

2 LGC - Laboratoire de Génie Chimique

3 UCP - Unité de Chimie et Procédés

4 GMPA - Génie et Microbiologie des Procédés Alimentaires

Abstract : A thermodynamic study of the vapor–liquid equilibrium for the ternary system ethyl lactate–ethanol–water was performed at 101.3 kPa and infinite dilution regarding ethyl lactate, for boiling temperatures ranging from (352.3 to 370.0) K. The experimental measurements were carried out with a recirculation still and the equilibrium compositions of ethyl lactate were determined by gas chromatography. The volatility of ethyl lactate decreases when the ethanol content in the liquid phase is increased. The investigated system was correctly correlated by the NRTL and UNIQUAC models, with an average absolute relative deviation below 10%. The comparison with the results obtained from interaction parameters fitted to experimental data of the binary systems ethyl lactate–ethanol and ethyl lactate–water at 101.3 kPa, proves that the parameters calculated in this work give a better description of the ethyl lactate volatility, a key parameter in distillation, at low concentrations. These latter parameters are therefore recommended for process simulation and optimization in alcoholic beverages production.

Keywords : Vapor–Liquid

Document type :

Journal articles

Domain :

Chemical Sciences / Chemical engineering

Engineering Sciences [physics] / Chemical and Process Engineering

Complete list of metadatas

Cited literature [8 references] Display Hide Download

https://hal-ensta-paris.archives-ouvertes.fr//hal-01778465
Contributor : Patrice Paricaud <>
Submitted on : Wednesday, January 16, 2019 - 9:21:50 AM
Last modification on : Friday, October 11, 2019 - 8:23:28 PM

Puentes_21142.pdf

Files produced by the author(s)

Vapor–Liquid Equilibrium of Ethyl Lactate Highly Diluted in Ethanol–Water Mixtures at 101.3 kPa. Experimental Measurements and Thermodynamic Modeling Using Semiempirical Models

File

Identifiers

Collections

Citation

Export

Metrics

195

80

Contact

Vapor–Liquid Equilibrium of Ethyl Lactate Highly Diluted in Ethanol–Water Mixtures at 101.3 kPa. Experimental Measurements and Thermodynamic Modeling Using Semiempirical Models

File

Identifiers

Collections

Citation

Export

Share

Metrics

195

80

Contact