CROSSOVER SAFT-BACK EQUATION OF STATE FOR CO_2 AND H_2O

摘要

The crossover statistical associating fluid theory and Boublik-Alder-Chen- Kreglewski (SAFT-BACK) equation of state (EOS) is established. The system-dependent parameters for CO_2 and H_2O are regressed and their thermodynamic properties are calculated. Then the classical and crossover SAFT-BACK EOSs are compared. For CO_2, their calculated deviations are both small. For H_2O, the calculated accuracy with the crossover EOS is better than that with the classical EOS.