当氧气浓度为15%时，NOx排放量低于NOx排放标准，在FG、N₂、H₂O和CO₂的稀释下，NOx减排效率分别达到84%、65%、96%和98%。且H₂O和CO₂作为稀释剂可以更好地实现焦炉加热系统温度的均匀性和合理性，同时实现低NOx燃烧过程。

When the oxygen concentration is 15%, the NOx emission is lower than the NOx emission standard. Under the dilution of FG, N2, H2O and CO2, the NOx emission reduction efficiency reaches 84%, 65%, 96% and 98%, respectively. And H2O and CO2 as diluents can better achieve the uniformity and rationality of the temperature of the coke oven heating system, and realize the low NOx combustion process at the same time.