Product gas combustion in fluidized bed for N2O reduction

The experimental research on removing N₂O with biomass gas was carried out in a small-fluidized bed reactor tube. The decomposition rate of N₂O and the production rate of NO impacted by reaction temperature, residence time, reburning position, rate of fuel, initial oxygen content of flue gas and the height of material bed were researched. The results showed that the decomposition rate of N₂O was more than 99% with some biomass gas and residence time was 0.32 sec in the reducing zone. The decomposition rate of N₂O was increased with the increasing of the distance from air distributor, was decreased with the increasing of the initial oxygen fraction, and was in direct proportion to the height of material bed and the fraction of ejected biomass gas.