| Summary: | 碩士 === 國防大學中正理工學院 === 應用化學研究所 === 92 === The energetic material cyclo-1,3,5-trimethylene-2,4,6-trinitramine (RDX) has relatively high velocity and pressure of detonation that has been widely used as explosive and propellant ingredients in the military industry. The most common technique of RDX manufacture is based on the reaction of hexamine with an excess of nitric acid in high concentration by many arsenals. This manufacturing process is quite dangerous and always causes runaway incidents owing to improperly operating process or out of control in its cooling system when the nitration reaction is proceeding. The reason of leading a system to runaway reaction comes from the released heat rate of chemical reaction exceeds the removed heat rate by the ambient cooling system. At initial time, the reaction temperature is increased gently bata and gradually. However, the raising temperature in reaction system can accelerate the reaction and exothermic rate. This is the self-heating reaction phenomenon always leads to fire incident or even the catastrophe of thermal explosion consquently, Finally.
In this investigation, we applied Semenov’s thermal explosion theory to study the critical runaway conditions and stable criteria of energetic material RDX manufacturing process in continuous stirred tank reactor and semi-batch reactor. We built the relationships of critical temperatures and parameters of cooling system to predict its safety conditions and optimum operations in the reaction system. These results can enhance the safety in process of factory manufacture and prevent runaway reaction accidents.
|
|---|
