abstract |
The present invention relates to an apparatus and method for removing nitrogen oxides from exhaust gas, and in order to remove nitrogen oxides from exhaust gas, sodium thiosulfate (Na 2 S 2 O 3 ) and sodium sulfite (Na 2 SO 3 ) are used by mixing one-to-one By doing so, it is possible to minimize the amount of the reducing agent while suppressing the generation of hydrogen sulfide. |