Calculation of solid-liquid-vapor PVT properties of pure substances using a quartic CCOR-PT equation of state
To evaluate the performance of a quartic CCOR-PT equation of state(CCOR-PT EOS),the solid-liquid-vapor PVT(pressure,volume,temperature)properties of 11 different compounds,including phenol,ethane,n-nonane,acetone,ethyl acetate,carbon dioxide,toluene,n-heptane,acetylene,n-hexane,and octane,were calculated using the CCOR-PT EOS.The calculated results were compared with literature data,and the effects of material intrinsic parameters on the calculation results were investigated.The results show that the equation could well describe the PVTproperties of three-phase,including the sublimation pressure and density of solids.The calculated results are more sensitive to the critical compression factor ZC than to eccentric factor ω.
equation of statesolidsthree-phasephysical propertiesquartic type