Critical Phenomena in Binary Fluid Mixtures: Classification of Phase Equilibria with the Simplified-Perturbed-Hard-Chain Theory

摘要

The thesis is mainly concerned with the global phase behavior that is calculated with the Simplified Perturbed Hard Chain equation. The results of the investigations have extended our knowledge of the systematics of phase equilibria in binary fluid mixtures. The authors' investigations give insight into the consequences of an assumed model for the intermolecular interactions on the phase behavior of a binary system. This leads to a deepening of our theoretical knowledge. The knowledge that is obtained about the possibilities of an equation of state can be used for the description of experimental data of thermodynamic properties. Moreover, for the development of equipment that is used in the chemical process industry, the use of simulation software, the so-called 'flowsheeting programs' is becoming more and more important. In addition to models for the description of the kinetics of chemical reactions, models for the design of particular equipment and economic models, thermodynamic models, among them the equations of state, form a very important part of these flowsheeting programs. A profound knowledge of the phase behavior that is predicted with an equation of state, is indispensable for the correct use of the simulation software. (Copyright (c) 1992, by A. van Pelt, Rotterdam, the Netherlands.)