Effects of metal ions on thermal hazard of tert-butyl peroxy-3,5,5-trimethylhexanoate |
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| Institution: | 1. College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 211816, Jiangsu, China;2. School of Environmental & Safety Engineering, Changzhou University, Changzhou, 213164, China;3. Center for Process Safety and Industrial Disaster Prevention, School of Engineering, National Yunlin University of Science and Technology, Yunlin, 64002, Taiwan;1. School of Environmental and Chemical Engineering, Jiangsu Ocean University, Lianyungang, 222005, China;2. School of Safety Science and Emergency Management, Wuhan University of Technology, Wuhan, 430070, China;3. Jiangsu Institute of Marine Resources Development, Jiangsu Ocean University, Lianyungang, 222005, China;1. Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology NTNU, Richard Birkelands vei 2B, 7034 Trondheim, Norway;2. Department of Industrial and Systems Engineering and Chairman, CoE in Safety Engineering and Analytics, Indian Institute of Technology Kharagpur, Kharagpur, 721302 West Bengal, India;3. Department of Mechanical and Industrial Engineering, University of Brescia, via Branze 38, 25123 Brescia, Italy;4. Department of Mechanical and Aerospace Engineering, Sapienza University of Rome, Via Eudossiana, 18, 00184 Rome, Italy;1. School of Safety Science and Engineering, Changzhou University, No. 21, Gehu Mid-Rd., Wujin Dist., Changzhou, 213164, Jiangsu, China;2. Department of Safety, Health, And Environmental Engineering, National Yunlin University of Science and Technology, No. 123, University Rd., Sec. 3, Yunlin, 64002, Taiwan, ROC;1. College of Mechanical and Electrical Engineering, China University of Petroleum (East China), Qingdao, 266580, China;2. College of New Energy, China University of Petroleum (East China), Qingdao, 266580, China;3. CNPC Tubular Goods Research Institute, Xian, 710077, China;1. School of Emergency Management and Safety Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, China;2. State Key Laboratory of Coal Resources and Safety Mining, China University of Mining and Technology, Beijing, 100083, China;1. CSE Center of Safety Excellence (CSE-Institut), Joseph-von-Fraunhofer-Str. 9, 76327, Pfinztal, Germany;2. University of Applied Sciences, Moltkestrasse 30, 76133, Karlsruhe, Germany |
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| Abstract: | As a commonly used initiator for polyethylene, tert-butyl peroxide 3,5,5-trimethylhexanoate (TBPTMH), with the molecular formula of C13H26O3, is more likely to decompose and cause fires and explosions. Understanding the thermal risks of TBPTMH mixed with common metal ions, potentially in containers and pipes, is important. In this work, by using differential scanning calorimetry (DSC) and Phi-Tec adiabatic calorimetry, the effects of CuCl2, FeCl3, CuBr2, and FeBr3 on the thermal decomposition of TBPTMH were investigated. Adiabatic kinetic analysis was performed and the apparent activation energy (Ea) was calculated by thermodynamic analysis. Time to maximum rise under adiabatic conditions (TMRad) and the self-accelerating decomposition temperature (SADT) under different packing qualities were reckoned. It was found that the thermal risk of TBPTMH was increased while mixing these metal ions, especially CuBr2. To ensure the safety of the substance in process industry, the temperature of TBPTMH in the presence of metal should be governed below 39.48 °C. This work was expected to provide some guidance for improving the process safety of TBPTMH. |
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| Keywords: | TBPTMH Metal ions Phi-tec adiabatic calorimetry Thermodynamic analysis Self-accelerated decomposition temperature |
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