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

Rebocho, Sílvia and V. M. Nunes, Ana and Najdanovic-Visak, Vesna and Barreiros, Susana and Simões, Pedro M. C. and Paiva, Alexandre (2014) High pressure vapor–liquid equilibrium for the ternary system ethanol/(±)-menthol/carbon dioxide. Journal of Supercritical Fluids, 92. 282–287. ISSN 0896-8446

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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.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Supercritical Fluids
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3104
Subjects:
ID Code:
70067
Deposited By:
Deposited On:
23 Jul 2014 08:10
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 08:56