FIELD: combustion.
SUBSTANCE: invention relates to an installation for a combustion process, containing: a furnace for heating material, a burner connected to a source of oxidizer gas supply, containing oxidizer gas containing at least 80 volumetric percent of oxygen, and made with the possibility of combustion of the specified oxidizer gas and fuel based on carbon in the furnace. The first upstream outlet for exhaust gas and the first downstream outlet for exhaust gas are in communication via fluid with the first gas duct, providing communication between the furnace and the specified first gas duct, and are made with the possibility of removal of exhaust gas formed during combustion from the furnace to the specified first gas duct. The second upstream outlet for exhaust gas and the second downstream outlet for exhaust gas are in communication via fluid with the second gas duct, providing communication between the furnace and the specified second gas duct, and are made with the possibility of removal of exhaust gas formed during combustion from the furnace to the specified second gas duct and at least one nozzle located in one or both of the specified gas ducts for ammonia injection into the gas duct and/or into exhaust gas.
EFFECT: limitation of NOx emissions from furnaces with oxygen-fuel combustion.
15 cl, 8 dwg
