Current Development Status

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The following table shows the current state of development of the UNIFAC Consortium model matrices for all four supported models UNIFAC, modified UNIFAC (Do), PSRK and VTPR compared to the published parameters.

 

 

Method

UNIFAC Consortium

Published

Parameter Pairs

Main Groups

New in 2017

Revised
All Years

Parameter Pairs

Main Groups

UNIFAC

1150

71

25

─

635

50

mod. UNIFAC (Do)

1790

106

66 + 16 revised

296

755

61

mod. UNIFAC (Do),   based on COSMO-RS (Ol)

372

─

39

─

8

─

PSRK

1258

91

28

5

955

82

VTPR

347

104

71

3

276

104

For the extension of the experimental data base for the revision of already existing group interaction parameters as well as for fitting of new group interaction parameters, systematic experimental measurements are performed. For the UNIFAC Consortium delivery 2017, 17 vapor-liquid equilibrium data sets, 28 excess enthalpy data sets and 4 solid-liquid equilibrium data sets of binary systems have been measured over the whole concentration range.

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