Estimation of kinematic viscosities for CO2 expanded liquids by ASOG-VISCO model

This study aims for an estimation of kinematic viscosities for CO2 expanded liquids by the ASOG-VISCO model. The ASOG-VISCO group pair parameters were determined from literature kinematic viscosities of binary mixtures CO2 + paraffin, alcohols, or ketone for group pairs of CO2, CH2, OH, and CO at the temperature range of 298-373 K. The ASOG-VISCO model showed good estimation accuracies in the kinematic viscosities for four mixtures CO2 + organic solvent, giving 5.97% of the average absolute relative deviation. The McAllister model was also used for the estimation of the kinematic viscosities studied, and the estimated results were compared with those by the ASOG-VISCO model.