石炭の循環流動層燃焼におけるN₂O生成

抄録

Parametric study was made on emission of nitric oxide (NO) and nitrous oxide (N₂O) from a bench scale circulating fluidized bed combustor (CFBC) of coal. It was found that significant amount of N₂O was emitted from the CFBC. N₂O emission levels were dependent on the bed temperature and coal types, and were parti cularly sensitive to former. Under the condition of lower bed temperature and/or low volatile coals, the N₂O emission increased. The dependency of N₂O emission on the bed temperature and the coal types was opposite to that of NO.The total amount of NO and N₂O was rather independent of the operating conditions except for the coal types and became large for low volatile coals.