Atmospheric radical reactions in the combustion of toluene in air
Abstract
The combustion of toluene in the air is accompanied by the formation of various types of toxicants. The elementary reactions of free radicals accompanying the combustion process are considered. The reactions of nitrogen oxides with benzyl radicals play one of the main roles in the transformation of toluene in air. The method of competing reactions was used as the main kinetic tool for determining the rate constants of the reactions of nitrogen oxides with benzyl radicals. Benzyl and hydroxyethyl radicals were obtained in reactions of chlorine atoms with toluene and ethanol. The reaction of nitrogen oxides with hydroxyethyl radicals was used as a competing reaction. The concentrations of reactants and reaction products were determined by mass spectrometry. The temperature dependence of the ratio of the rate constants of these reactions is obtained.
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