Experimental research on |biomass derived gas reburning for N₂O reduction in a fluidized bed combustor

Experimental research on biomass derived gas reburning for N₂O removal was carried out in a small scale fluidized bed combustor. The effects of reburning position, the height of material bed, the rate of reburning fuel, the initial oxygen content of flue gas and reaction temperature on N₂O emission were investigated. The results show that the decomposition rate of N₂O with the reburning of biomass derived gas at nozzle B (200mm over the air distributor) is hiher than that at nozzle A (100mm higher than air distributor). When 1% of biomass derived gas with regard to N2O/N2 mixture is ejected from nozzle B at 850℃ of bed temperature and 10mm of bed height, N₂O is decomposed nearly completely.