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Study on thermal properties and kinetics of benzoyl peroxide by ARC and C80 methods

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Abstract

Benzoyl peroxide (BPO) has been widely used in the industrial and food field, it is sensitive to shock, heat and friction, and causes thermal explosion incidents easily. Therefore, it is important to understand its thermal behaviors and kinetics for loss prevention and safety management. Two kinds of experimental methods (C80 calorimetry and accelerating rate calorimetry) were used to study the hazardous characteristics of BPO, and idea kinetic parameters, such as the pre-exponential factor and the activation energy were obtained. These results contribute to improve the safety in the reaction, transportation, and storage processes and help to the stability criterion of decomposition reaction of BPO.

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Abbreviations

Φ :

Thermal inertia

M s :

Mass of the sample

M b :

Mass of the bomb

M 0 :

Initial mass of reactant

M T :

Mass of reactant at time t

C p,s :

Heat capacity of the sample (kJ/kg K)

C p,b :

Heat capacity of the bomb (kJ/kg K)

x :

Conversion rate (%)

A :

Pre-exponential factor of Arrhenius equation (s−1)

E a :

Activation energy (kJ/mol)

ΔH :

Reaction heat of unit reactant (kJ/mol)

t :

Reaction time (min)

T :

Temperature of system at time t (K)

T o,s :

Onset exothermic temperature

T f :

Maximum temperature (K)

ΔT ad :

Adiabatic temperature rise (K)

m o,s :

Self-heating rate at T o,s

m m,s :

Maximum self-heating rate

n :

Reaction order

k :

Constant of reaction rate

R :

Gas constant (8.31415 J/mol K)

dH/dt :

Overall heat flow (W)

dT/dt :

Self-heat rate (K/s)

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Acknowledgements

This research was supported by Sinopec Safety Engineering Institute, Qingdao, China and State Key Laboratory of Safety and Control for Hazardous Chemicals, Qingdao, China. The authors are also thankful to the Natural Science Foundation of Shandong Province (Grant No. ZR2010BL022) and the Qingdao Science Foundation (Grant No. 8-1-3-17-jch), China.

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Authors and Affiliations

  1. College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, 266042, Shandong, China

    Dao-Xing Sun, Xiao Miao, Jing Gu & Rong Li

  2. Sinopec Safety Engineering Institute, Qingdao, 266071, Shandong, China

    Chuan-Xin Xie & Jing Gu

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  1. Dao-Xing Sun
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  2. Xiao Miao
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  3. Chuan-Xin Xie
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  4. Jing Gu
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Correspondence to Dao-Xing Sun.

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Sun, DX., Miao, X., Xie, CX. et al. Study on thermal properties and kinetics of benzoyl peroxide by ARC and C80 methods. J Therm Anal Calorim 107, 943–948 (2012). https://doi.org/10.1007/s10973-011-1536-3

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  • DOI: https://doi.org/10.1007/s10973-011-1536-3

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