Nitrogen Oxides Removal Processes for Combustion Flue Gas Treatment

The nitrogen oxides removal processes have been developed to tr eat the tail gases from nitric acid plants, or metal pickling plants . In recently, research and developement of combustion flue gas treatment for removing nitrogen oxides have been started.The major problems at the combustion flue gas treatment may be the interferences by sulfur dioxide, oxygen, and dust in flue gases.These problems are discussed in this paper.