High pressure vapor-liquid equilibrium for the ternary system ethanol/(±)-menthol/carbon dioxide

S. Rebocho, A.V.M. Nunes, V. Najdanovic-Visak, S. Barreiros, P. Simões, A. Paiva

Research output: Contribution to journalArticle

Abstract

In this work the phase behavior of the ternary system ethanol/(±)-menthol/CO2 was studied at the temperatures of 313 and 323 K, in the pressure range 8–10 MPa. Experiments were performed using a high pressure phase equilibrium apparatus with a visual cell. CO2 is more selective toward ethanol, separation factors ranging from 1.6 to 7.6 at the conditions tested. The pTxy data obtained were correlated with the Peng–Robinson equation of state combined with the Mathias–Klotz–Prausnitz mixing rule. The model gave a good fitting to the data, with a total average absolute deviation of 3.7%, and was able to predict the occurrence of a three-phase region observed experimentally at 313 K and 9 MPa.
Original languageEnglish
Pages (from-to)282-287
JournalJournal of Supercritical Fluids
Volume92
DOIs
Publication statusPublished - 1 Aug 2014

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menthol
Menthol
liquid-vapor equilibrium
Ternary systems
ternary systems
Carbon Dioxide
Phase equilibria
carbon dioxide
Carbon dioxide
Ethanol
ethyl alcohol
Phase behavior
Equations of state
equations of state
occurrences
deviation
cells
Experiments
Temperature
temperature

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Rebocho, S., Nunes, A. V. M., Najdanovic-Visak, V., Barreiros, S., Simões, P., & Paiva, A. (2014). High pressure vapor-liquid equilibrium for the ternary system ethanol/(±)-menthol/carbon dioxide. Journal of Supercritical Fluids, 92, 282-287. https://doi.org/10.1016/j.supflu.2014.06.006
Rebocho, S. ; Nunes, A.V.M. ; Najdanovic-Visak, V. ; Barreiros, S. ; Simões, P. ; Paiva, A. / High pressure vapor-liquid equilibrium for the ternary system ethanol/(±)-menthol/carbon dioxide. In: Journal of Supercritical Fluids. 2014 ; Vol. 92. pp. 282-287.
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Rebocho, S, Nunes, AVM, Najdanovic-Visak, V, Barreiros, S, Simões, P & Paiva, A 2014, 'High pressure vapor-liquid equilibrium for the ternary system ethanol/(±)-menthol/carbon dioxide', Journal of Supercritical Fluids, vol. 92, pp. 282-287. https://doi.org/10.1016/j.supflu.2014.06.006

High pressure vapor-liquid equilibrium for the ternary system ethanol/(±)-menthol/carbon dioxide. / Rebocho, S.; Nunes, A.V.M.; Najdanovic-Visak, V.; Barreiros, S.; Simões, P.; Paiva, A.

In: Journal of Supercritical Fluids, Vol. 92, 01.08.2014, p. 282-287.

Research output: Contribution to journalArticle

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AU - Rebocho, S.

AU - Nunes, A.V.M.

AU - Najdanovic-Visak, V.

AU - Barreiros, S.

AU - Simões, P.

AU - Paiva, A.

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Rebocho S, Nunes AVM, Najdanovic-Visak V, Barreiros S, Simões P, Paiva A. High pressure vapor-liquid equilibrium for the ternary system ethanol/(±)-menthol/carbon dioxide. Journal of Supercritical Fluids. 2014 Aug 1;92:282-287. https://doi.org/10.1016/j.supflu.2014.06.006