METHOD OF REDUCTION OF EVOLUTION OF CONTAINED IN FLUE GASES FORMED IN COMBUSTION OF NITROGEN-CONTAINING FUELS IN FLUIDIZED BED REACTORS Russian patent published in 1997 - IPC

FIELD: mechanical engineering. SUBSTANCE: amount of released from fluidized bed reactor is reduced through introduction of additives forming hydrogen radicals (for example, addition of natural gas or alcohol) in decomposition into flue gases escaping from fluidized bed. Sufficient amount of oxygen is fed to flue gases either through introducing additives or through creating excess of oxygen in combustion chamber so that additives forming hydrogen radicals in decomposition react with oxygen of air increasing temperature of flue gases from 700-900 C to 950-1100 C, thus reducing formation of by about 10-90 %. Additives may be injected either before cyclone used for separation of dust particles from flue gases or before superheater of convective section or into combustion chamber before gas turbine. EFFECT: enhanced efficiency. 11 cl, 3 dwg