Method for utilizing CO in flue gas denitration of sintering flue gas

The invention discloses a method for utilizing CO in flue gas denitration of sintering flue gas, which comprises the following steps: a CO combustion catalyst is arranged in a reaction tower, so that CO in the flue gas is subjected to a combustion reaction; and a heat exchanger is arranged between the flue gas leading-out end and the original flue gas leading-in end of the reaction tower, so that the flue gas combusted by a CO combustion catalyst exchanges heat with the original flue gas after passing through the heat exchanger. According to the method for utilizing CO in flue gas denitration of sintering flue gas, the content of CO in the flue gas can be greatly reduced, combustibles discharged into the environment are further greatly reduced, the environment is better protected, meanwhile, in the process that CO in the flue gas is reduced by the combustion catalyst, generated heat is effectively utilized, and better energy-saving performance is achieved. 本发明公开一种烧结烟气的烟气脱硝中CO利用方法，包括以下步骤：在反应塔内设置一CO燃烧催化器，使得烟气中的