VAPOR-LIQUID-EQUILIBRIUM IN THE CARBON DIOXIDE-ETHYL PROPANOATE SYSTEM AT PRESSURES FROM 2 TO 9 MPA AND TEMPERATURES FROM 303 TO 323 K

Vapour-liquid equilibrium data in the carbon dioxide-ethyl propanoate system were measured isothermally at 303.15 K, 313.15 K, and 323.15 K at pressures ranging from 2 MPa to 9 MPa. The experimental data were f itted to the Soave-Redlich-Kwong equation of state in the modification of Graboski and Daubert with the mixing rules developed by Kwak and M ansoori. Maximum likelihood procedure was adopted and all variables we re assumed to be subject to errors.