Classification for ternary flash point mixtures diagrams regarding miscible flammable compounds

Sergio da Cunha (1) , Vincent Gerbaud (1) , Nataliya Shcherbakova (1) , Horng-Jang Liaw (2)

1 LGC - Laboratoire de Génie Chimique
2 National Kaohsiung First University of Science and Technology

Flash point is a major indicator on the study of fire and explosion hazards of liquid mixtures. Mixtures presenting a minimum flash point behavior are particularly dangerous. It has been shown before that minimum/maximum flash point mixtures could be related with azeotropic behavior under some conditions. Since the 70's a classification of ternary azeotropic mixtures has been developed based on the topological properties of residue curve maps arising from the simple evaporation equilibrium model. In this paper we show that such a general classification also exists for flash point diagram of miscible flammable compound ternary mixtures and that it could help anticipate fire and explosion hazard in ternary mixtures. The demonstration is based on the construction of an auxiliary theoretical system under equilibrium equivalent to a non-equilibrium flash point system.

Mots clés: Flash point; Miscible flammable compound; Nonequilibrium thermodynamics; Classification; Ternary diagrams

Domaines: Génie chimique; Génie des procédés

Sergio da Cunha, Vincent Gerbaud, Nataliya Shcherbakova, Horng-Jang Liaw. Classification for ternary flash point mixtures diagrams regarding miscible flammable compounds. Fluid Phase Equilibria, 2018, 466, pp.110-123. ⟨10.1016/j.fluid.2018.03.010⟩. ⟨hal-01831762⟩