Abstract

SANCHEZ, César Augusto; ESTUPINAN, Libardo  and  SALAZAR, Mario Andrés. THERMODYNAMIC CHARACTERIZATION TOOLS OF TERNARY SYSTEMS IN DISTILLATION. Rev.EIA.Esc.Ing.Antioq [online]. 2010, n.13, pp.77-91. ISSN 1794-1237.

Innovative numerical tools are presented in this paper, based on the theory of homotopy continuation methods, for the solution of phase equilibrium problems, pertinent in the thermodynamic characterization of ternary mixtures. The main contribution is the strategy to transform phase equilibrium problems in thermodynamic homotopies that can be solved with the continuation methods. Some complex but typical situations are illustrated in processes of azeotropic and extractive distillation, related to the location of azeotropes, the classification of the volatility regions and the liquid-liquid-vapor envelope.

Keywords : homotopy continuation methods; phase equilibrium; distillation.

        · abstract in Spanish | Portuguese     · text in Spanish     · Spanish ( pdf )