The name is absent

0           2           4           6           8

ρ [kmol∕m³]

Figure 2.4: Saturated liquid and vapor densities for n-hexane, and n-hexadecane. Com-
parison for SAFT-D (solid lines) and PC-SAFT (dashed lines) to experimental data. Filled
symbols correspond to the experimental critical points.

to improve the predictions of the EOS in the critical region. The results have been
promising, but further studies are necessary before an EOS including critical scaling
can be used as a predictive tool for a wide range of systems. Consequently, the better
performance of the new EOS near the critical region without introducing any new
parameters is commendable, since correct prediction of the phase behavior near the
critical region is of great industrial significance in a wide variety of fluid separation
processes like supercritical extraction and fractionation of petroleum. The new EOS
correlates pure component properties better than PC-SAFT (see figure 2.4). The
deviations are low for higher alkanes, indicating the improvement over PC-SAFT for
longer chain lengths. Although the low values of AAD% and better estimates of
critical temperatures and pressures, demonstrate that the parameters describe the

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