MEASUREMENT AND MODELING OF ATMOSPHERIC-PRESSURE VAPOR-LIQUID-EQUILIBRIUM DATA FOR BINARY, TERNARY AND QUATERNARY MIXTURES OF SUCROSE, GLUCOSE, FRUCTOSE AND WATER COMPONENTS

Experimental vapor-liquid equilibrium (VLE) data have been obtained on binary, ternary and quaternary mixtures for synthetic sugar juices co mposed of water, sucrose, glucose and fructose. The data were obtained at atmospheric pressure using an Othmer apparatus. To fit the equilib rium data, the Peng-Robinson and the Lee-Kesler equations of state as well as the NRTL model were used. Binary interaction parameters for th ese models were identified using the maximum likelihood principle. The results showed that the Peng-Robinson equation of state produced a be tter fit of the experimental data as well as a better prediction of th e boiling point curve for a quaternary mixture.