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A new procedure for extending the applicability of cubic EOS to critical conditions is described. This method requires to determine two sets of optimum binary interaction parameters for the non-critical and critical parts ofPTx experimental data of binary systems. The effective binary interaction parameters are calculated by interpolation between these two sets of binary interaction parameters....
This paper describes a procedure and first results for the prediction of critical points of nonideal systems with a UNIFAC-based equation of state. The PSRK group contribution model (Holderbaum and Gmehling, 1991) was incorporated in the computational method developed by Heidemann and Khalil (1980). The algorithm was extended on testing both local and global thermodynamic stability of calculated...
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