Inertization Effects on the Explosion Parameters of Different Mix Ratios of Ethanol and Toluene – Experimental Studies

• Autorzy: Flasińska P.
• Języki publikacji: EN

Abstrakty

EN

Each flammable substance has a range in which it can be explosively ignited when mixed with air at given temperatures and pressures. For fire or explosion to occur the appropriate amounts of oxidant and flammable substance are necessary at a concentration at least equal to its lower explosive limit. High potential toxicity and flammability of mixtures used in industry can lead to serious harm to people and the environment. Therefore, preventing accidents which can result in fire and/or explosion, is an important factor in the design of chemical processes. For this purpose, a process called inertization can be applied. In this paper the explosion characteristics of mixtures of two solvents: ethanol-toluene is discussed. Explosion parameters were experimentally determined using a closed vessel of 20 l at 120 °C and ambient pressure. Results are shown graphically as ternary diagrams with the explosion hazard areas highlighted. Results show importance of inertization in process safety.

Słowa kluczowe

EN

explosion limits; lower explosion limit (LEL); upper explosion limit (UEL); limiting oxygen concentration (LOC); limiting air concentration (LAC)

• Wydawca: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
• Czasopismo: Materiały Wysokoenergetyczne
• Rocznik: 2016
• Tom: T. 8
• Strony: 111--117
• Opis fizyczny: Bibliogr. 7 poz., rys., tab.

Twórcy

autor

Flasińska P.

• Institute of Industrial Organic Chemistry, 6 Annopol St., 03-236 Warsaw, PL

Bibliografia

• [1] Flasińska Paulina, Frączak Michał, Piotrowski Tadeusz. 2012. Explosion hazard evaluation and determination of the explosion parameters for selected hydrocarbons C6 – C8. Cent. Eur. J. Energ. Mater. 9 (4) : 399-409.
• [2] Crowl A. Daniel, Louvar F. Joseph. 2002. Chemical Process Safety: Fundamentals with Applications. Second Edition. New Jersey : Prentice Hall PTR, pp. 225-267; ISBN 0-13-018176-5.
• [3] EN 14756:2007: Determination of Limiting Oxygen Concentration for gases and vapours. European Committee for Standardisation, Brussels.
• [4] Chang Y.M., Lee J.C., Chen J.R., Liaw H.J., Shu C.M. 2009. Fire and Explosion Properties Examinations of Toluene–Methanol Mixtures Approached to the Minimum Oxygen Concentration. J. Therm. Anal. Calorim. 96 (3) : 741-749.
• [5] Regulation (EC) No 1272/2008 of the European Parliament and of the Council of 16 December 2008 on classification, labelling and packaging of substances and mixtures, amending and repealing Directives 67/548/EEC and 1999/45/EC, and amending Regulation (EC) No 1907/2006. pp. 59-62.
• [6] EN 1839:2013: Determination of Explosion Limits of Gases and Vapours. European Committee for Standardization, Brussels.
• [7] Flasińska Paulina. 2014. Influence of inert agents on the explosion parameters of selected gases and vapors of organic liquids. (in Polish) Materiały Wysokoenergetyczne 6 : 46-52.

Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).