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Updated: Jun 18, 2025
07:49
On-line Analysis of Nitrogen Containing Compounds in Complex Hydrocarbon Matrixes
Published on: August 5, 2016
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Study on the Thermal Decomposition Risk of 3,7-Dinitro-1,3,5,7-tetraazabicyclo[3,3,1]nonane under Different
Zhi Wang1, Shaohua Jin1, Guanghui Gu2
1School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100811, China.
ACS Omega
|August 5, 2024
Summary
The thermal safety of DPT, a key intermediate in octogen production, was assessed. High-pressure DSC and ARC tests revealed its two-stage decomposition, enabling a kinetic model to simulate explosion risks.
Area of Science:
- Chemical Engineering
- Materials Science
- Reaction Safety
Background:
- DPT is a critical intermediate in octogen production.
- Its thermal decomposition presents a significant hazard, necessitating thorough safety assessments.
- Understanding DPT's thermal behavior is crucial for safe industrial handling and storage.
Purpose of the Study:
- To evaluate the thermal hazard and decomposition kinetics of DPT.
- To determine the optimal experimental conditions for accurate thermal analysis.
- To develop a kinetic model for simulating thermal explosion risks.
Main Methods:
- Non-isothermal Differential Scanning Calorimetry (DSC) experiments were performed.
- Accelerating Rate Calorimetry (ARC) tests were conducted.
- The influence of different crucible types on DSC results was investigated.
Main Results:
- High-pressure sealed crucibles provided accurate assessment of DPT's autocatalytic decomposition.
- The decomposition involves two main stages: DPT breakdown and byproduct reactions.
- A robust kinetic model was successfully established based on DSC data.
Conclusions:
- The study successfully characterized the thermal decomposition of DPT.
- A reliable kinetic model was developed for predicting thermal risks.
- The findings are vital for ensuring the safe storage and handling of DPT in octogen production.
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