Thermal decomposition characteristics of expired single-based propellant using a lab-scale tube furnace and a thermo-gravimetric analysis reactor

Sang Shin Park, In Sik Hwang, Myung Soo Kang, Hyo Jae Jeong, Jungho Hwang

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3 Citations (Scopus)

Abstract

The Republic of Korea has a plan to construct an incineration facility for expired propellant from munitions including 155, 105 mm, and 8 in. howitzer shells. It is important to understand thermal characteristics of the propellant before designing the incineration facility. In this study, the ingredients of a propellant sample were analyzed using liquid chromatography–mass spectrometry, and the temporal mass loss of the sample was measured using thermo-gravimetric analysis in an argon atmosphere up to a temperature of 350 °C at different heating rates of 10, 20, and 30 °C min−1. The mass of the sample started decreasing at a temperature of about 180 °C and was fully decomposed when the temperature reached about 210 °C. Using a first-order model to describe the reaction kinetics, we obtained a pre-exponential factor of 2.09 × 1039 min−1 and an activation energy of 335.77 kJ mol−1 for the sample. In order to understand product gas compositions, another thermal decomposition experiment was carried out using a lab-scale tube furnace under an argon atmosphere up to a temperature of 350 °C. Gas compositions were analyzed using gas chromatography and gas detecting tubes. Residual ash compounds were analyzed using X-ray fluorescence.

Original languageEnglish
Pages (from-to)657-665
Number of pages9
JournalJournal of Thermal Analysis and Calorimetry
Volume124
Issue number2
DOIs
Publication statusPublished - 2016 May 1

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

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