Prediction of Liquid_ Liquid Equilibria of Binary Systems Containing Alcohols using EoS-GE Models

In this work, the equations of state-excess Gibbs energy (EoS-GE) models were examined for prediction of liquid_liquid equilibria (LLE) of binary mixtures at 0.1 MPa. Three binary systems containing Decane+Methanol, Cyclohexane+Methanol and Cyclohexane+2,2,2-Trifluoroethanol (TFE) were tested using the Peng–Robinson EoS modified by Stryjek and Vera (PRSV), and the excess Gibbs mixing rules MHV1 and MHV2, with two excess Gibbs models: the Wilson equation modified by Tsuboka and Katayama (T–K–Wilson) and the UNIQUAC equation. The adjustable parameters in the EoS-GE models were determined from LLE data at 0.1 MPa.

کلیدواژه ها:

Equation of state ، Mixing rule ، Liquid–liquid equilibria ، Excess Gibbs energy models