Abstract
Isobaric vapor−liquid equilibria were measured for cyclohexane + o-xylene, + m-xylene, + p-xylene, and + ethylbenzene at 101.3 kPa using a dynamic still with circulation of both phases. Experimental data were tested for thermodynamic consistency and satisfactorily correlated by different equations. The four systems exhibit positive deviations from ideal behavior. A comparative analysis was performed by application of the ASOG, original UNIFAC, modified UNIFAC (Dortmund), and modified UNIFAC (Lyngby) systems, and low root-mean-square deviations of vapor mole fraction and temperature were computed.
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