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http://dx.doi.org/10.7842/kigas.2013.17.4.1

Thermal Hazards of Polystyrene Polymerization Process by Bulk Polymerization  

Han, In-Soo (Occupational Safety & Health Research Institute, KOSHA)
Lee, Jung-Suk (Occupational Safety & Health Research Institute, KOSHA)
Lee, Keun-Won (Occupational Safety & Health Research Institute, KOSHA)
Publication Information
Journal of the Korean Institute of Gas / v.17, no.4, 2013 , pp. 1-8 More about this Journal
Abstract
The aim of this study is to assess thermal hazards of polystyrene polymerization process by bulk polymerization with accelerating rate calorimeter(ARC) and Multimax reactor system(MM). From this study, we found out that the polymerization process should be operated at reaction temperature of $120^{\circ}C{\sim}130^{\circ}C$. At reaction temperature over $130^{\circ}C$, there was a runaway reaction hazard due to the temperature control failure following a viscosity increase of reaction products. With a cooling failure of a reactor in the early stage of process operation at the reaction temperature ($120^{\circ}C{\sim}130^{\circ}C$), there was a high thermal hazard of burst of a reactor's rupture disk or explosion of a reactor caused by the rapid rise of temperature and pressure to $340^{\circ}C$, 5.3 bar respectively within 30 - 50 minutes.
Keywords
polystyrene polymerization process; thermal hazard; cooling failure; reaction temperature; runaway reaction; TMR;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Sevas Educational Society, Production of polystyrene(process description), http://www.sbiinformatic.com/design_thesis/Polystyrene
2 Korea Occupational safety & Health Agency, "Vapor cloud explosion? fire accident" Major accident news letter, KOSHA-CCPS-201102, (2011)
3 Wilcock, E. and Rogers, R.L., "A review of the Phi factor during runaway conditions", Journal of Loss Prevention in the Process Industries, 10(5-6), 289-302, (1997)   DOI   ScienceOn
4 HAN, I.S., Lee, K.W., Lee, J.Y., "Characteristics of thermal hazard in methylthioisocyanate synthesis reaction process", Journal of KOSOS, 27(5), 77-87, (2012)   과학기술학회마을
5 Francis Stoessel, "Planning protection measures against runaway reactions using criticality classes", Process Safety and Environmental Protection, 87, 105-112, (2009)   DOI   ScienceOn