Experimental VLE data of methyl acetate or ethyl acetate + 1-butanol at 0.6 MPa. Predictions with Peng-Robinson EOS and group contribution models

Abstract

Vapor-liquid equilibrium data were obtained with a stainless steel ebulliometer at 0.6 MPa for methyl acetate + 1-butanol and ethyl acetate + 1-butanol. The experimental data for the binary systems were tested and verified thermodynamically, showed positive consistency when the point-to-point test of Van Nesswas applied. The group contribution models ASO Gand three versions of the UNIFAC were applied to calculate the vapor-liquid equilibrium data and after, these values were compared to the experimental data.The approach f-f was applied by using the Peng-Robinson equation of state, the classical attractive term was employed. The quadratic and Wong-Sandler mixing rules were verified and the adjustable parameter of Stryjek-Vera was also applied.