Isobaric vapor–liquid and vapor–liquid–liquid equilibrium data for the system water + ethanol + cyclohexane

Isobaric vapor–liquid (VLE) and vapor–liquid–liquid equilibria (VLLE) were measured for the ternary system water + ethanol + cyclohexane at 101.3 kPa. The experimental determination was carried out in a dynamic equilibrium still with circulation of both the vapor and liquid phases, equipped with an...

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Bibliographic Details
Published in:Fluid phase equilibria 2005-08, Vol.235 (1), p.7-10
Main Authors: Gomis, V., Font, A., Pedraza, R., Saquete, M.D.
Format: Article
Language:English
Subjects:
Chemistry
Cyclohexane
Ethanol
Exact sciences and technology
Experimental data
General and physical chemistry
Liquid-vapor equilibria
Others (including liquid-liquid-vapor equilibria)
Phase equilibria
Vapor–liquid–liquid equilibrium
Water
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Summary:Isobaric vapor–liquid (VLE) and vapor–liquid–liquid equilibria (VLLE) were measured for the ternary system water + ethanol + cyclohexane at 101.3 kPa. The experimental determination was carried out in a dynamic equilibrium still with circulation of both the vapor and liquid phases, equipped with an ultrasonic homogenizer. The experimental data demonstrated the existence of a ternary heterogeneous azeotrope at 335.6 K with a composition of 0.188, 0.292, 0.520 mole fraction of water, ethanol and cyclohexane, respectively. The experimental data were compared with those obtained using UNIFAC and NRTL models with parameters taken from literature.
ISSN:0378-3812
1879-0224
DOI:10.1016/j.fluid.2005.07.015