Evaluation of thermal hazard for lauroyl peroxide by VSP2 and TAM III

• Published in: Journal of thermal analysis and calorimetry Vol. 109; no. 3; pp. 1237 - 1243
• Main Authors: Wei, Jian-Ming, You, Mei-Li, Chu, Yung-Chuan, Shu, Chi-Min
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Dordrecht Springer Netherlands 01.09.2012; Springer
• Subjects: Analytical Chemistry; Applied sciences; Chemical engineering; Chemistry; Chemistry and Materials Science; Exact sciences and technology; Inorganic Chemistry; Measurement Science and Instrumentation; Physical Chemistry; Polymer Sciences; Safety; Runaway reactions; Lauroyl peroxide (LPO); Thermal activity monitor III (TAM III); Vent sizing package 2 (VSP2); Accident control; Acyl peroxide; Isothermal condition; Microcalorimeter; Exothermic reaction; Microcalorimetry; Vent sizing package calorimeter; Storage; Thermal analysis; Reaction runaway; Thermokinetics; Hazard
• ISSN: 1388-6150; 1588-2926; 1572-8943
• DOI: 10.1007/s10973-012-2350-2

When above certain temperature limits, lauroyl peroxide is an unstable material. If the thermal source cannot be properly governed during any stage in the preparation, manufacturing process, storage or transport, runaway reactions may inevitably be induced immediately. In this study, the influence of runaway reactions on its basic thermal characteristic was assessed by evaluating thermokinetic parameters, such as activation energy ( E a ) and frequency factor ( A ) by thermal activity monitor III (TAM III). This was achieved under five isothermal conditions of 50, 60, 70, 80, and 90 °C. Vent sizing package 2 (VSP2) was employed to determine the maximum pressure ( P max ), maximum temperature ( T ma x ), maximum self-heating rate ((d T  d t −1 ) max ), maximum pressure rise rate ((d P  d t −1 ) max ), and isothermal time to maximum rate (( TMR ) iso ) under the worst case. Results of this study will be provided to relevant plants for adopting best practices in emergency response or accident control.