Modeling of thermophysical behaviour of MCH/Alkan-2-ol binary mixtures

Density and viscosity values were measured at 293.15 to 323.15 K for methylcyclohexane (MCH) + 2-propanol or 2-butanol or 2-pentanol mixtures using the stabinger viscometer. The experimental data have been used to calculate the excess molar volumes and viscosity deviations. The densities were used to test the applicability of the PC-SAFT model. Three viscosity models namely Friction theory coupled with PC-SAFT, Free volume theory coupled with -SAFT and Peng Robinson Stryjek Vera (PRSV) equation of state were selected for modeling the viscosities of binary mixtures using the interaction parameters obtained from objective function method. The calculated density by PC-SAFT theory compared well with the corresponding experimental values. The correlation results of viscosity for all binary systems show that the friction theory coupled with PC-SAFT has more applicability and precision than those of the free volume theory coupled with PC-SAFT and PRSV equation of state.