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Investigation of Combustible Characteristics for Risk Assessment of Benzene  

Ha, Dong-Myeong (Department of Occupational Health and Safety Engineering, Semyung University)
Publication Information
Journal of the Korean Society of Safety / v.24, no.5, 2009 , pp. 28-33 More about this Journal
Abstract
The thermochemical parameters for safe handling, storage, transport, operation and process design of flammable substances are explosion limit, flash point, autoignition temperatures(AITs), minimum oxygen concentration(MOC), heat of combustion etc.. Also it is necessary to know explosion limit at high temperature and pressure. For the safe handling of benzene, lower explosion limit(LEL) at $25^{\circ}C$, the temperature dependence of the explosion limits and flash point were investigated. And the AITs for benzene were experimented. By using the literatures data, the lower and upper explosion limits of benzene recommended 1.3 vol% and 8.0 vol%, respectively. This study measured relationship between the AITs and the ignition delay times by using ASTM E659-78 apparatus for benzene, and the experimental AIT of benzene was $583^{\circ}C$. The new equations for predicting the temperature dependence of the explosion limits of benzene is proposed. The values calculated by the proposed equations were a good agreement with the literature data.
Keywords
benzene; flash point; explosion limit; autoignition temperature; the temperature dependence;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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