REDUCTION THEOREM FOR PHASE-EQUILIBRIUM PROBLEMS

This paper presents a general mathematical theorem in phase equilibrium equations. It shows how, for a well-defined class of thermodynamic models, the dimensionality of various phase equilibrium problems can be reduced. After introduction of some basic concepts used in the evaluation of phase equilibria for the theorem is formulated and proven. Applications include examples ranging from mixtures of hydrocarbons with L non-hydrocarbons (K=2L+2) to polymer mixtures.