PSRK group contribution equation of state: revision and extension III

The application range of the predictive Soave-Redlich-Kwong (PSRK) group co ntribution equation of state (EOS) for the prediction of vapor-liquid equil ibria (VLE) and gas solubilities was extended by the introduction of additi onal structural groups (epoxides, HF, HI, COS) and fitting of 98 pairs of g roup interaction parameters to experimental phase equilibrium data. These d ata were systematically measured for the extension of PSRK, or taken from l iterature and compiled in the Dortmund Data Bank (DDB). Typical results are presented for various systems. Additionally, new experimental VLE data are given for the binary system propylene oxide + benzene at 323.15 K. The new data were required to fit the interaction parameters between the epoxy and the aromatic CH group. (C) 2000 Elsevier Science B.V. All rights reserved.