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.