论文部分内容阅读
在１台燃煤量３０ｋｇ／ｈ的飞灰循环流化床装置上进行了ＮＯｘ、Ｎ２Ｏ释放４令性和排放控制的试验研究．研究表明：床温升高，ＮＯｘ增加、Ｎ２Ｏ减少，相同温度下烟煤的Ｎ２Ｏ排放低于无烟煤。分级燃烧的二次风率增至１５％，ＮＯｘ排放降低１４％、Ｎ２Ｏ降低２４％。Ｃａ／Ｓ比增加，导致Ｎｏｘ提高、Ｎ２Ｏ减小．悬浮段温度不大于９３５℃处注氨可以显著降低ＮＯｘ排放量而对Ｎ２Ｏ却无还原效果图１２。表１参６
A pilot study on the control of NOx and N2O emissions and emission control was conducted on a fly ash circulating fluidized bed unit with a coal burning capacity of 30 kg / h. The results show that bed temperature increases, NOx increases and N2O decreases. N2O emission of bituminous coal is lower than anthracite at the same temperature. Staged combustion secondary air rate increased to 15%, NOx emissions reduced by 14%, N2O decreased by 24%. Ca / S ratio increased, resulting in increased Nox, N2O decreased. Ammonia injection at a suspended section temperature of not more than 935 ° C can significantly reduce the amount of NOx emission without any reduction effect on N2O. Table 1 reference 6