Equations of State (Pures) and Activity Coefficient Models (Mixtures) in TDE

Introduction: TDE version 3.0 supports evaluation of equations of state (EOS) for pure compounds, and evaluation of parameters for activity coefficient models for mixtures.

The fitting processes are described: EOS & Activity Coefficent Model

EOS supported in TDE are:

• Span-Wagner Equation (Non-Polar)

• Span-Wagner Equation (Polar)

• PC-SAFT Equation

• Modified Sanchez-Lacombe Equation

• Peng-Robinson Equation (Original)

• Peng-Robinson Equation (Twu)

• Peng-Robinson Equation (Mathias-Copeman)

• Peng-Robinson Equation (SRW)

• REFPROP Equations of State (Read Only): NIST Standard Reference Database 23

• EOS (Read Only): Span-Wagner type (polar or non-polar) EOS generated with TDE