Abstract
In power plants intended for the disposal of solid household waste, the processes take place at a high temperature. For such installations, nonequilibrium processes are characteristic of a change in the composition of combustion products caused by the final rates of the ongoing chemical reactions. This affects the basic characteristics of the combustion process of municipal solid waste. A mathematical model has been created for calculating the chemically nonequilibrium composition of the fuel. Solid household and industrial waste is a high-energy fuel. It is a high energy fuel. The process of thermal neutralization of solid household waste is considered. An alternative calculation method is presented that allows one to find the composition of combustion products under conditions of nonequilibrium in the process of thermal utilization of solid domestic waste. The data on the composition and properties of solid household waste obtained by the developed method of calculation allow predicting the yield of super Eco toxicants in combustion products. On the basis of the equations of formal chemical kinetics, an alternative was created, which consists in determining the composition of combustion products taking into account the kinetics of chemical reactions. The assumption is introduced that transformations in the gas phase are elementary, one-stage. Various chemical interactions can be represented by a set of elementary stages. The most probable are mono-, biand three molecular chemical reactions. The method allows predicting the yield of Eco toxicants by finding the composition of the fuel combustion products prior to its utilization.
Highlights
The rate of formation of soot particles directly depends on the molecular weight of saturated and unsaturated hydrocarbons
The burnout rate of incomplete combustion products is higher than the burnup rate of soot during thermal utilization of municipal solid waste [5,6,7,8]
The obtained results of a numerical study indicate the influence of various factors on the quantitative characteristics of soot formation
Summary
The rate of formation of soot particles directly depends on the molecular weight of saturated and unsaturated hydrocarbons. The higher the molecular weight of the substance, the higher it is. Soot formation is associated with the properties of the fuel under study. There is a direct relationship between the ratio of hydrogen to carbon and the concentration of soot. The higher the H/C ratio, the higher the concentration of soot particles [1,2,3,4]. In many power plants designed for thermal waste disposal, there is a problem of components not burning out. The burnout rate of incomplete combustion products is higher than the burnup rate of soot during thermal utilization of municipal solid waste [5,6,7,8]
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