Adiabatic kinetics calculations considering pressure data

Pressure and temperature play an important role in the adiabatic decomposition of hazardous materials. In this article, Accelerating Rate Calorimeter (ARC) was used to study adiabatic decomposition of 40 wt% dicumyl peroxide (DCP) solution，20 wt% di-tert-butyl peroxide (DTBP) solution and 2,4-dinitrotoluene (2,4-DNT). Based on the temperature and pressure signals, the kinetic constants of 40 wt% DCP and20 wt% DTBP were calculated separately. It is found that the temperature and gas production kinetics of the 40 wt% DCP solution are in good agreement with each other, but the temperature and gas production kinetics of 20 wt% DTBP solution are significantly different. The adiabatic decomposition of 2,4-DNT under different pressure conditions was experimentally investigated. The experimental results indicated that pressure promoted the adiabatic decomposition of 2,4-DNT. Accordingly, new kinetic equations were developed to describe the adiabatic decomposition of 2,4-DNT under different pressure conditions. These works provide a new insight into adiabatic kinetics calculations .