Abstract
Isobaric vapor–liquid equilibrium (VLE) data of ethyl acetate– n-propyl acetate and tetrahydrofuran–acetonitrile binary systems at 93.8 kPa were measured using a modified Malanowski equilibrium still. While the experimental data of the former binary showed nearly ideal characteristics, the latter binary showed positive deviation from ideal solution behavior. VLE data of the first binary system were fitted by means of three group-contribution models: ASOG, UNIFAC, and the modified UNIFAC models with interaction parameters from literature. VLE data of the second binary system were fitted by means of Wilson, NRTL, Van Laar, and UNIQUAC models. Group-contribution models ASOG and UNIFAC were not used because of the lack of interaction parameters between groups of the second binary.
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