Calculation of tri-critical points

摘要: Abstract Procedures are presented for calculating higher order critical points in thermodynamic models. The procedures arise from an analysis of the Gibbs tangent plane criterion phase stability. New methods proposed evaluating functions that must be zero at and ease with which these functional evaluations can carried out is major element permitting calculation mixtures any number components. Comparison made between experimental data tri-critical ternary as calculated Peng-Robinson SRK equations.