Project Background
There are three existing 240t/h high-temperature and high-pressure pulverized coal boilers. Before denitration, the NOX concentration is about 600mg/ Nm3, and the design value of low nitrogen +SNCR emission concentration is ≤200mg/ Nm3 (6% oxygen content in dry basis). In actual operation, the highest value is 280mg/ Nm3 (6% oxygen content in dry basis), which cannot meet the relevant requirements of ultra-low emission. At present, it is planned to carry out ultra-low emission on the boilers, aiming to reach the NOX emission concentration in the the level of 30~50mg/Nm3 (6% oxygen content in dry basis).