Models

All phase equilibrium calculations performed in VLXE are based on the use of equations of state (EOS).

A very large number of equations of state have been proposed since van der Waals made the first EOS.

Eight EOS are included in VLXE Blend. Depending on the EOS a different number of mixing rules are included.

Equations of state included

•Peng/Robinson

•Soave/Redlick/Kwong

•Sanchez/Lacombe (Original)

•Sanchez/Lacombe (Ideal gas limit)

•PC-SAFT

•Co-polymer PC-SAFT

•CPA

•simplified PC-SAFT

Models for the ideal gas heat capacity included:

•DIPPR

•Polynomial expression