VLE at 114.66 and 127.99 kPa for the Systems Methyl Acetate + Ethanol and Methyl Acetate + Propan-1-ol. Measurements and Prediction

摘要: Isobaric vapor–liquid equilibrium data at two pressures (114.66 and 127.99 kPa) over the entire range of compositions were obtained by using a recirculating still for binary systems formed methyl acetate either ethanol or propan-1-ol. In all cases, studied exhibit positive deviations from ideal solution behavior. Methyl + system shows an azeotrope 114.66 kPa x = y 0.954 T 333.4 K 0.948 336.7 kPa. Once thermodynamic consistency was verified, prediction several methods carried out. Good predictions UNIFAC ASOG methods, with mean error about 5% as expected, but calculated values activity coefficients modified showed higher deviations.