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On the relation between azeotropic behavior and minimum / maximum flash point occurrences in binary mixtures of flammable compounds

Da Cunha, Sergio and Liaw, Horng-Jang and Gerbaud, Vincent On the relation between azeotropic behavior and minimum / maximum flash point occurrences in binary mixtures of flammable compounds. (2017) Fluid Phase Equilibria, 452. 113-134. ISSN 0378-3812

(Document in English)

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Official URL: https://doi.org/10.1016/j.fluid.2017.08.019


The flash point temperature and the boiling temperature of a mixture are related by the fact that both can be modeled based on vapor-liquid equilibrium (VLE) of each component. It has been suggested in the literature that there might exist a concomitance between azeotropic behavior and minimum/maximum flash point temperature for binary mixtures. In order to verify this statement, we derive new temperature dependent functions that relate the conditions valid for azeotropic behavior and those valid for minimum/maximum flash point behavior. Analysis of experimental data and predicted results allowed us to propose a heuristic to forecast extremum flash point based on the sole knowledge of azeotropic data and boiling and flash point temperatures differences. Extremum flash point might occur when both components are flammable and when the gap between the flash point temperatures of individual components (ΔT_fp) is of the same order or smaller than the boiling temperature gap (ΔT_b). Hence, we contribute to the assessment of the fire and explosion hazards in binary mixtures eventually presenting a minimum flash point behavior

Item Type:Article
Additional Information:Thanks to Elsevier editor. The original PDF of the article can be found at Fluid Phase Equilibria website : https://www.sciencedirect.com/science/article/pii/S0378381217303187?via%3Dihub
HAL Id:hal-01718030
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > National Kaohsiung First University of Science and Technology (TAIWAN)
Laboratory name:
Deposited On:27 Feb 2018 08:05

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