Method for catalytic combustion utilization of combustible CO in sintering flue gas

The invention discloses a method for utilizing combustible CO in sintering flue gas through catalytic combustion, and belongs to the technical field of sintering flue gas treatment.The sintering flue gas enters a reaction tower after being subjected to desulfurization, wet electric dust removal and denitration treatment in sequence, a CO catalytic combustor is arranged in the reaction tower, a combustion catalyst is arranged in the CO catalytic combustor, and the combustion catalyst is used for catalyzing the combustion of the combustible CO in the sintering flue gas. A heat exchanger is arranged between the flue gas leading-out end of the reaction tower and the flue gas leading-in end before denitration treatment, so that the flue gas combusted by the CO combustion catalyst exchanges heat with the flue gas before denitration treatment after passing through the heat exchanger; the combustion catalyst is a catalyst obtained by compounding metal oxides of manganese and cerium and palladium metal; according to t