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A new mixing rule for the attractive term parameter in the Dohrn-Prausnitz equation of state (DP-EOS) has been developed by combining the EOS with a group contribution G E -model. The application of the Dohrn-Prausnitz perturbation term for the Carnahan-Starling EOS in combination with original- or modified-UNIFAC leads to a new G E /EOS model, the predictive-Dohrn-Prausnitz model...
A new group contribution method for calculating the heat of vaporization ΔH v of pure substances based on UNIFAC is presented in this paper. The UNIVAP (UNIversal heats of VAPorization) method permits this calculation over a wide temperature range with high accuracy. A mean relative deviation of 1,25 % was found. A sound theoretical background enables good predictions. The parameters were...
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