Evaluation of runaway reaction for dicumyl peroxide in a batch reactor by DSC and VSP2

Sheng Hung Wu, Mei-Ling Shyu, Yet Pole I, Jen Hao Chi, Chi Min Shu

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Dicumyl peroxide (DCPO) is usually employed as an initiator for polymerization, a source of free radicals, a hardener, and a linking agent. In Asia, due to its unstably reactive nature, DCPO has caused many thermal explosions and runaway reaction incidents in the manufacturing process. This study was conducted to elucidate its essentially hazardous characteristics. To analyze the runaway behavior of DCPO in a batch reactor, thermokinetic parameters, such as heat of decomposition (ΔHd), exothermic onset temperature (T0), maximum temperature rise ((dT dt-1)max), maximum pressure rise ((dP dt-1)max), and self-heating rate, were measured via differential scanning calorimetry (DSC) and vent sizing package 2 (VSP2). Meanwhile, adiabatic thermal runaway phenomena were then thoroughly investigated by VSP2. The thermokinetics of DCPO mixed with acids or bases was determined by DSC/VSP2, and the experimental data were compared with kinetics-based curve fitting of thermal safety software (TSS). Results from curve fitting indicated that all of the above-mentioned acids or bases could induce exothermic reactions at even an earlier stage of the experiments. To diminish the degree of hazard, hazard information must be provided to the manufacturing process.

Original languageEnglish
Pages (from-to)721-727
Number of pages7
JournalJournal of Loss Prevention in the Process Industries
Volume22
Issue number6
DOIs
StatePublished - Nov 1 2009

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Homeless Youth
Vents
Differential Scanning Calorimetry
Batch reactors
Peroxides
differential scanning calorimetry
peroxides
Differential scanning calorimetry
Hot Temperature
heat
Curve fitting
Runaway Behavior
Hazards
manufacturing
Temperature
Acids
Exothermic reactions
Explosions
Heating rate
Free radicals

Keywords

  • Dicumyl peroxide (DCPO)
  • Differential scanning calorimetry (DSC)
  • Hazardous characteristics
  • Thermokinetic parameters
  • Vent sizing package 2 (VSP2)

ASJC Scopus subject areas

  • Food Science
  • Energy Engineering and Power Technology
  • Chemical Engineering(all)
  • Management Science and Operations Research
  • Safety, Risk, Reliability and Quality
  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering

Cite this

Evaluation of runaway reaction for dicumyl peroxide in a batch reactor by DSC and VSP2. / Wu, Sheng Hung; Shyu, Mei-Ling; I, Yet Pole; Chi, Jen Hao; Shu, Chi Min.

In: Journal of Loss Prevention in the Process Industries, Vol. 22, No. 6, 01.11.2009, p. 721-727.

Research output: Contribution to journalArticle

Wu, Sheng Hung ; Shyu, Mei-Ling ; I, Yet Pole ; Chi, Jen Hao ; Shu, Chi Min. / Evaluation of runaway reaction for dicumyl peroxide in a batch reactor by DSC and VSP2. In: Journal of Loss Prevention in the Process Industries. 2009 ; Vol. 22, No. 6. pp. 721-727.
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