Abstract
To broaden and lower the temperature window of the selective non catalytic reduction (SNCR) of nitric oxide (NO), the use of activated ammonia as the reduction agant was examined. An intermittent dielectric barrier dischalge (DBD) was employed to generate activated ammonia from molecular ammonia. Chemical composition was clear by gas analysis at exit of the DBD reactor, it found that the main species of the activate ammonia were H_2 and N_2. By experiments and chemical kinetics simulation, it was clear that H_2 was strongly contributed to enlargement of temperature window ofDeNOx.