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Article Dans Une Revue Computers & Chemical Engineering Année : 2013

A simple and unified algorithm to solve fluid phase equilibria using either the gamma-phi or the phi-phi approach for binary and ternary mixtures

Résumé

A new algorithm is proposed for calculating phase equilibria in binary systems at a fixed temperature and pressure. This algorithm is then extended to ternary systems (in which case, the mole fraction of one constituent in a given phase must be fixed in order to satisfy the Gibbs' phase rule). The algorithm has the advantage of being very simple to implement and insensitive to the procedure used to initialize the unknowns. Most significantly, the algorithm allows the same solution procedure to be used regardless of the thermodynamic approach considered (gamma-phi or phi-phi), the type of phase equilibrium (VLE, LLE, etc.) and the existence of singularities (azeotropy, criticality and so on).

Domaines

Chimie

Dates et versions

hal-01282418 , version 1 (03-03-2016)

Identifiants

Citer

Romain Privat, Jean-Noël Jaubert, Yannick Privat. A simple and unified algorithm to solve fluid phase equilibria using either the gamma-phi or the phi-phi approach for binary and ternary mixtures. Computers & Chemical Engineering, 2013, 50, pp.139-151. ⟨10.1016/j.compchemeng.2012.11.006⟩. ⟨hal-01282418⟩
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