Extension of the Peng-Robinson equation of state to complex mixtures: Evaluation of the various forms of the local composition concept
PM Mathias, TW Copeman - Fluid Phase Equilibria, 1983 - Elsevier
Density-dependent local composition (DDLC) mixing rules (Whiting and Prausnitz, 1981,
1982 and Mollerup, 1981) offer great promise to extend equations of state to highly nonideal
mixtures. In this work we investigate various aspects of the DDLC concept and offer two
useful forms. All development is done with the Peng-Robinson (1976) equation of state, but
the results have general applicability.
1982 and Mollerup, 1981) offer great promise to extend equations of state to highly nonideal
mixtures. In this work we investigate various aspects of the DDLC concept and offer two
useful forms. All development is done with the Peng-Robinson (1976) equation of state, but
the results have general applicability.
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