Review article

The article presents the results of studies aimed atreducing emissions of harmful substances formed duringcombustion of gas fuel in special-purpose industrial kilns.For this purpose, the problems of formation and reductionof nitrogen oxide emissions during fuel combustion in akiln for the production of radio-technical ceramics areconsidered. A significant difficulty in solving this problem was the impossibility of changing the fuel combustion conditions determined by the technological parameters of the kiln. The methodology of the work is based on a technical and economic comparison of various methods for suppressing nitrogen oxide emissions and selecting the optimal option. There has been performed a structural design of a nitrogen suppression system combined with an existing wet exhaust gas treatment unit. Various options for its operation have been experimentally studied. The efficiency of each option has been determined and the preferred option for the system using the catalytic properties of a by-product of the technological process has been substantiated. The scientific and practical results of the work make it possible to significantly reduce air pollution in the adjacent residential areas of the city.