Modelling of pure components high pressures densities using CK-SAFT and PC-SAFT equations
Stijepović, Mirko Z.
Ivanis, Gorica R.
Radovic, Ivona R.
Article (Published version)
MetadataShow full item record
SAFT equations of state have been widely used for the determination of different thermo-physical and phase equilibria properties. In order to use these equations as predictive models it is necessary to calculate the model parameters. In this work CK-SAFT and PC-SAFT equations of state were applied for the correlation of pure compounds densities in the wide ranges of temperature and pressure (288.15-413.15 K and 0.1-60 MPa, respectively). The calculations of densities for n-hexane, n-heptane, n-octane, toluene, dichloromethane and ethanol, under high pressure conditions, were performed with the new sets of parameters determined in this paper by CK-SAFT and PC-SAFT. Very good agreement between experimental and calculated density values was achieved, having absolute average percentage deviations lower than 0.5 %.
Keywords:density / modelling / non-associative compounds / SAFT / CK-SAFT / PC-SAFT
Source:Journal of the Serbian Chemical Society, 2018, 83, 3, 331-343
- Serbian Chemical Society