800
p (kmol∕m3}
Figure 2.7: Comparison of predictions from the new equation of state (solid lines) and PC-
SAFT (dashed lines) with experimental data for saturated liquid density of n-C24, n-C30
and n-C36.
2.3.2 Mixtures
The new equation of state was applied to mixtures of non-associating fluids with
the binary interaction parameter, kʊ set to 0. The results were compared with PC-
SAFT predictions as well as with experimental data. Figures 2.8a, 2.8b, 2.9a,and
2.9b show vapor-liquid equilibria diagrams of eicosane-propane, hexadecane-hexane,
tetracosane-hexane and hexatriacontane-hexane mixtures, respectively, at various
temperatures. Both EOS perform equally well for eicosane-propane mixture. For
other mixtures, the new EOS is in better agreement with the experimental data. For
these systems, the deviations of the predictions of the new EOS from the experimen-
tal data are low for n-C16 mixture, lower for n-C24 mixture and lowest for n-C36
mixture. This emphasizes the fact that the new EOS performs better for long chain
53