ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Determination of vapor—liquid equilibrium diagrams of multicomponent systems

Leonid Serafimov and Anastasia Frolkova

Department of Chemistry and Technology of Basic Organic Synthesis, Institute of Fine Chemical Technology, Moscow Technological University, Vernadskogo prospect 86, Moscow, 119571, Russian Federation

E-mail: frolkova_nastya@mail.ru

Abstract: A method for the determination of vapor–liquid phase diagram structure of five-component systems based on the analysis of types and Poincare indexes of singular points of the geometric scan and full structure of the concentration simplex is proposed. Validity of the proposed method was demonstrated by vapor–liquid equilibrium modeling in five-component mixtures: ethanol + water + toluene + butanol + chlorbenzene and acetone + chloroform + ethanol + cyclohexane + water.

Keywords: five-component systems; azeotrope; phase diagram; vapor–liquid equilibrium; Poincare index

Full paper is available at www.springerlink.com.

DOI: 10.1515/chempap-2016-0091

Chemical Papers 70 (12) 1578–1589 (2016)