Journal
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Volume 127, Issue 1, Pages 1019-1026Publisher
SPRINGER
DOI: 10.1007/s10973-016-5812-0
Keywords
Apparent activation energy; DSC; Peracetic acid (PAA); Thermal runaways; Thermal safety assessment
Funding
- Chang Chun Group (CCP), Taiwan, ROC
- Ministry of Science and Technology (MOST) of the ROC
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Peracetic acid (PAA) is potentially harmful because of its thermal hazards in industrial processes. Attention must be paid to the preparation, manufacturing, transportation, and storage because PAA may readily cause a thermal runaway reaction under various upset scenarios. PAA is classified an explosive substance in the governmental regulation in Taiwan. Here, 20 mass% of PAA was used to estimate the thermokinetic parameters by using differential scanning calorimetry. Heating rates employed were 1.0, 2.0, 4.0, and 8.0 A degrees C min(-1). We compared the four heating rates of thermal safety assessment with regard to process safety parameters, such as exothermic initial temperature (T (0)) and heat of decomposition (Delta H (d)). Finally, five kinetic analysis methods, along with differential isoconversional kinetic analysis, were used to estimate the apparent activation energy (E (a)). The experimental results could be used helpful during the manufacturing process, transportation, and storage as the process safety parameter considerations to forestall thermal damage from happening, and to reach zero-disaster purposes as the ultimate goals.
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