CORRELATION OF THE VAPOR-LIQUID-EQUILIBRIA OF CFC, HCFC AND FC MIXTURES - CRITICAL-EVALUATION OF MIXING RULES

The vapor-liquid equilibrium data of the binary CFC, HCFC, and FC mixt ures were correlated with the Soave-Redlich-Kwong equation of state in corporated with some types of mixing rules; the conventional one fluid , Panagiotopoulos-Reid and modified Huron-Vidal second order mixing ru les. The Panagiotopoulos-Reid mixing rule showed the superiority to th e other models in predicting the VLE of freon mixtures with low errors . The modified Huron-Vidal second order model showed good convergence ability, which was due to its robustness to parameter variation.