Typical Results for Polyethylene Glycol
A recent development of the modified UNIFAC (Dortmund) model is the introduction of a new flexible main group enabling the calculation of phase equilibria and thermodynamic excess properties for various systems containing Polyethylene glycol (PEG 200, 300, 400, 600, 1000, 1500, 2000 and 3270).
Example 1 shows predicted limiting activity coefficients of Benzene in four Polyethylene glycols with increasing molecular weights together with some experimental data from the Dortmund Data Bank.
Example 2 shows predicted mixing enthalpies of 1,2-Dimethoxymethane and PEG 400 together with a set of experimental data points.
The examples 3 and 4 show predicted vapor-liquid equilibria of Benzene...
...and Ethanol in PEG 400 at different temperatures together with experimental data.
The next joint DDBST user and UNIFAC consortium member meeting is scheduled for September 22th to 23th, 2020.