Vapor pressures and vapor-liquid equilibrium of propyl acetate+methanol or 1-propanol at 0.15MPa. Bynary systems
P. Susial, J.J. Rodríguez-Henríquez, J.C. Apolinario, V.D. Castillo and E.J. Estupiñan
Using a metal ebulliometer in which both phases are recirculated p i 0 have been determined for methanol and 1-propanol in the range of 0 to 1.6 MPa.
VLE data of propyl acetate with methanol or 1-propanol at 0.15 MPa have been obtained and verified using the test of Van Ness.
Azeotropic points were calculated using VLE data and the influence of pressure in the evolution of the azeotrope was observed.
The prediction of activity coefficients by the ASOG and UNIFAC group contribution models has been verified.
Significant discrepancies have been obtained predicting the VLE data using ASOG and UNIFAC models probably due to overpressure.
|