The Experimental Research on Realizing Low NO_X Emission with Recycle of Flue Gas

The key technology of realizing high temperature air combustion is to control the oxygen concentration in the combustion zone.A small scale high temperature air combustion experimental system was set up for this study.Some exhausted flue gas was recycled to obtain low concentration of oxygen.The effects of recycle of flue gas on the NOX emission were investigated experimentally.The tem-perature distribution in combustion zone was discussed and the characteristics of the its with the recycle ratio of flue gas was researched.