Experimental determination and theoretical prediction of the vapor-liquid equilibrium and interfacial tensions of the system methyl-tert-butyl ether + 2,5-dimethylfuran

The phase and interfacial behaviors of the mixture were theoretically characterized by applying the square gradient theory to a Peng-Robinson Stryjek-Vera equation of state (EoS), appropriately extended to mixtures by means of the modified Huron-Vidal mixing rule. The so-developed model allows directly transferring the experimental excess Gibbs energy function to the EoS model for equilibrium calculation purposes. Results obtained according to this theoretical framework show that both experimental vapor-liquid equilibrium data and interfacial tensions can be accurately predicted.