| abstract |
The present disclosure relates to a method for removing nitrogen oxides (NO x ) more effectively at 300° C. or below in boilers, gas turbines, incinerators, diesel engines, glass melting furnaces, etc. by selective catalytic reduction (SCR). n To this end, an oxidation catalyst is mounted in front of a NO x -reducing device based on selective catalytic reduction and the NO x composition, i.e. the ratio of NO:NO 2 , in the exhaust gas is adjusted to about 1:1, such that de-NO x catalytic reaction is carried out under optimized fast SCR condition and de-NO x efficiency at low temperature can be maximized. |