Thermal hazard evaluation of tert-butyl hydroperoxide mixed with four acids using calorimetric approaches

doi:10.1007/s10973-014-3777-4

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Title:	Thermal hazard evaluation of tert-butyl hydroperoxide mixed with four acids using calorimetric approaches
Authors:	Chou, Hung-Cheng Chen, Nan-Chi Hsu, Shu-Ting Wang, Chih-Hsing Wu, Sheng-Hung Wen, I-Jyh Shen, Sun-Ju Shu, Chi-Min
Contributors:	應用空間資訊系
Keywords:	DSC tert-Butyl hydroperoxide (TBHP) Thermal hazard Thermokinetic parameters Vent sizing package 2 (VSP2)
Date:	2014-08
Issue Date:	2015-05-06 21:26:27 (UTC+8)
Publisher:	Springer
Abstract:	Possessing thermal instability inherently, organic peroxides have caused many severe accidents in chemical industries all over the world. tert-Butyl hydroperoxide (TBHP) is usually used as initiator or oxidant because of its strong oxidizing ability in the chemical process. In this study, the thermal hazard analysis of TBHP mixed with various acids was investigated. Differential scanning calorimetry (DSC) and vent sizing package 2 were used to figure out the thermal runaway behaviors of TBHP. Thermokinetic parameters, such as exothermic onset temperature (T (0)), maximum temperature (T (max)), and enthalpy (Delta H), were obtained from thermal curves. In addition, the activation energy (E (a)) and rate constant (k) were calculated by the Arrhenius equation. Therefore, the T (0) was determined to be 91.6 A degrees C for exothermic reaction using DSC under 4 A degrees C min(-1) of heating rate. The E (a) for exothermic reaction was calculated to be 92.38 kJ mol(-1) by DSC in this study. As far as loss prevention is concerned, thermokinetic parameters are crucial to the relevant processes in the chemical industries, particularly under process upsets.
Relation:	Journal of thermal Analysis and Calorimetry, v.117 n.2, pp.851-855
Appears in Collections:	[Dept. of Applied Geoinformatics] Periodical Articles

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