METHOD OF REDUCING NITROGEN OXIDE EMISSIONS FROM ROTARY KILN OF CEMENT PRODUCTION Russian patent published in 2024 - IPC B01D53/54 C04B7/44 B01D53/56 C04B7/42 F27B7/20 

FIELD: chemistry.

SUBSTANCE: invention relates to methods of reducing nitrogen oxide NO_x emissions from a rotary kiln of cement production. Described is a method of reducing emissions of nitrogen oxides from a rotary kiln of cement production, which provides for supply through a fuel nozzle of a dusty fuel mixture consisting of a solid fuel and a carbonate component having moisture content of not more than 5%, obtained by joint grinding to residue on sieve No 008 from 5 to 20% of solid fuel and carbonate component, amount of which is up to 50% of the weight of the dust-like fuel mixture, and its discharge rate from the fuel injector is 40–120 m/s.

EFFECT: reduction of NO_x emissions from the rotary kiln into the atmosphere during solid fuel combustion.

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