A review of ternary azeotropic mixtures advanced separation strategies

Weifeng Shen (1) , H. Benyounes (2) , J. Song (3)

1 LGC - Laboratoire de Génie Chimique
2 USTO MB - Université des sciences et de la Technologie d'Oran Mohamed Boudiaf [Oran]
3 CAS - Chinese Academy of Sciences [Beijing]

In most multi-component systems, the predominant non-ideality occurs which lead to the occurrence of an azeotrope. The ternary systems classification and study are summarized in first part of this review. The next part covers thermodynamic knowledge of residue curve maps, univolatility and unidistribution curves. A feasibility criterion based on thermodynamic properties of ternary diagram is presented, they are considered as powerful tool for the flow-sheet development and conceptual design. Separation of azeotropic mixtures and close boiling mixtures require non-conventional distillation processes, among which the leading processes are pressure-swing distillation if the composition of the azeotrope changes significantly with pressure, azeotropic distillation, extractive distillation, reactive distillation, and salt-effect distillation. The final section provides an overview of concepts, history, and recent strategies in these non-conventional distillations

Mots clés: Azeotropic mixtures; Thermodynamic analysis; Residue curve maps; Extractive distillation

Domaines: Génie chimique; Génie des procédés

Weifeng Shen, H. Benyounes, J. Song. A review of ternary azeotropic mixtures advanced separation strategies. Teoreticheskie Osnovy Khimicheskoi Tekhnologii / Theoretical Foundations of Chemical Engineering, 2016, 50 (1), pp.28-40. ⟨10.1134/S0040579516010140⟩. ⟨hal-02134875⟩