Reburning Characteristics Research of Combustible Gas in CFB

Experimental research on the characteristics of co-combustion coal and combustible gas has been carried out. The influence of nozzle position and combustible gas reburning ratio on N2O and NO removal rate were carried out at CFB experimental platform. It is found that N2O removal rate achieved a maximum value when the reburning gas was injected into furnace from nozzle C with a height-diameter ratio of 8.3, and the NO removal rate is about 50%; When the combustible gas were injected into furnace from nozzle C, the N2O removal rate kept increasing with the increase of reburning ratio (Rm), which can reach 99% when the Rm value is 10.5%. In addition, the NO removal rate is increasd after the first reduction with the increase of Rm, when the rate is about 39% with Rm is 10.5%.