Harbingers of dioxins in thermal decomposition of high-energy fuel

Abstract

Abstract Combustion of high-energy chemical fuels containing dioxins in their elemental composition can lead to the formation of super eco toxicants on smoke particles-polychlorinated dioxins and furans. The choice of the method of solving the equations of chemical kinetics is basic in numerical experiment. Calculation and theoretical studies were carried out to solve the problem of determining the parameters of combustion products of chemical fuels taking into account the formation of traces of polychlorinated dioxins. Basic information on the adopted method of determining non-equilibrium composition of combustion products of chlorine-containing chemical fuels is presented. Based on the literary analysis on the mechanisms and rates of chemical reactions of conversion of chlorine-containing compounds, a kinetic model of formation of traces of dioxins was built. Numerical calculations on the assumption of chemical equilibrium have shown that the dioxins formation process is substantially non-equilibrium. The results of kinetic studies on the emission of dioxins precursors showed the nature of the change in time of various components of combustion products of chemical fuels depending on temperature.