Vapor-liquid equilibrium for binary systems containing a heavy liquid and a dense fluid

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Equilibrium phase compositions were measured for the binary systems of acetophenone plus carbon dioxide, ethane, or ethylene at temperatures from 313.15 to 348.15 K and pressures up to 190 bar or near the mixture critical pressures. The solubilities of three dense fluids in four heavy liquids were compared. Henry's constants, partial molar volumes of the gas at infinite dilution, and the Margules parameters of the Krichevsky-Ilinskaya equation were also determined. Moreover, the validity of the Soave, Patel-Teja, and Iwai-Margerum-Lu equations of state for such systems were tested by the measured data. In general, the Patel-Teja equation is better than the others