Liquid-liquid phase behavior for systems containing ethyl benzene + methanol + methyl cyclohexane

The determination region of solubility of methanol with gasoline of high aromatic content was investigated experimentally at temperature of 298.2 K. A type 1 liquidliquid phase diagram was obtained for this ternary system. These results were correlated simultaneously by the UNIQUAC model. The values of the interaction parameters between each pair of componenets in the system were obtained for the UNIQUAC model using the experimental result. The root mean square deviation (RMSD) between the observed and calculated mole percents was 2.86 for methylcyclohexane + methanol + ethylbenzene. The mutual solubility of methylcyclohexane and ethylbenzene was also investigated by the addition of methanol at 298.2 K.

Keywords:

Liquid-liquid equilibria , Phase equilibria , Plait point , Ternary system , UNIQUAC model