Browse > Article

An Evaluation of Thermal Stability of Raw Materials in the Vinyl Acetate Polymerization Process  

Lee, Keun-Won (Occupational Safety & Health Institute, Korea Occupational Safety & Health Agency)
Han, In-Soo (Occupational Safety & Health Institute, Korea Occupational Safety & Health Agency)
Lee, Jung-Suk (Occupational Safety & Health Institute, Korea Occupational Safety & Health Agency)
Publication Information
Journal of the Korean Society of Safety / v.25, no.3, 2010 , pp. 61-65 More about this Journal
Abstract
Most of the chemical reactions performed in the chemical industry are exothermic, meaning that thermal energy is released during the reaction. It is also important to understand the thermal hazards such as thermal stabilities and runaway reactions, which are governed by thermodynamics and reaction kinetics of the mixed materials. The paper was described the evaluation of thermal behavior caused by an exothermic batch process in manufacture of the vinyl acetate resin. The aim of the study was to evaluate the thermal stabilities of raw materials with operating conditions such as a reaction inhibitor, heating rate, reaction atmosphere and the mount of methanol charged in the vinyl acetate polymerization process. The experiments were performed in the differential scanning calorimeter(DSC), C 80 calorimeter, and thermal screening unit($TS^u$). It was suggested that we should provide the thermal characteristics for raw materials to present safe precautions with operating conditions in the vinyl acetate polymerization process.
Keywords
thermal stability; vinyl acetate; polymerization process; differential scanning calorimeter(DSC); C 80 calorimeter; thermal screening unit($TS^u$);
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Kuo-Ming Luo et al., "The critical runaway condition and stability criterion in the phenol-formaldehyde reaction", Jr. of Loss Prevention in the Process Industries, No. 13, pp. 91-108, 2000.   DOI   ScienceOn
2 이근원 등, "시멘트 혼화제 제조시 에스테르화공정의 열 안정성 평가'', 한국안전학회지, 제 24권, 제4호, pp. 40-46, 2009.   과학기술학회마을
3 Chen-Shan Kao and Kwan-Hua Hu, "Acrylic reactor runaway and explosion accident anaiysis", Jr. of Loss Prevention in the Process Industries, No. 15, pp. 213-222, 2002.   DOI   ScienceOn
4 J.L. Gustin, "Understanding vinyl acetate polymerization accidents", Chemical Health & Safety, November/December, pp. 36-46, 2005.
5 이근원, "열량계를 이용한 화학제품 제조업의 폭주 반응 위험성 평가", 연구원 2009-99-1309, 한국산업안전보건공단 산업안전보건연구원 2009
6 이근원, "회분식 공정에서의 발열반응에 의한 열적 . 반응안전성 평가", 연구원 2008-131-1458, 한국산업안전공단 산업안전보건연구원, 2008.
7 Claudio Ampelli et al., "Calorimetric study of the inhibition of runaway reactions during methylmethacrylate polymerization processes", Jr. of Loss Prevention in the Process Industries, No. 19, pp. 419-424, 2006.   DOI   ScienceOn