| abstract |
The invention belongs to the technical field of environmental protection, and particularly provides a denitration method and device combining direct-current corona discharge with catalytic oxidation. The denitration method combining direct-current corona discharge with catalytic oxidation comprises the specific processes: electrode gas discharges under the action of high voltage between positive and negative electrodes to generate discharge free radicals, NO in flue gas is partially oxidized into NO2 under the action of the discharge free radicals and a catalyst, and the flue gas is discharged after NO and NO2 are absorbed by a base solution. Aiming at the technical problem that removal of NOx from flue gas by low-temperature plasma discharge is high in energy consumption at present, the synergy between the free radicals generated by direct-current corona discharge and the catalyst is utilized to realize low-temperature pollution-free NOx removal, thus nitrogen oxides in the flue gas are removed by combining direct-current corona discharge with catalytic oxidation. The invention also provides a device for realizing the method. |