TY - JOUR
T1 - High pressure vapor-liquid equilibrium for the ternary system ethanol/(±)-menthol/carbon dioxide
AU - Rebocho, S.
AU - Nunes, A.V.M.
AU - Najdanovic-Visak, V.
AU - Barreiros, S.
AU - Simões, P.
AU - Paiva, A.
PY - 2014/8/1
Y1 - 2014/8/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-84903587440&partnerID=MN8TOARS
UR - https://www.sciencedirect.com/science/article/pii/S0896844614001624?via%3Dihub
U2 - 10.1016/j.supflu.2014.06.006
DO - 10.1016/j.supflu.2014.06.006
M3 - Article
SN - 0896-8446
VL - 92
SP - 282
EP - 287
JO - Journal of Supercritical Fluids
JF - Journal of Supercritical Fluids
ER -