Depending on the NO/NO2 content in the exhaust gas, two important main SCR reactions are:
• Without NO2: Standard SCR:Â
4 NH3 + 4 NO + O2 → 4 N2 + 6 H2O
•With NO2: Fast SCR:Â
4 NH3 + 2 NO + 2 NO2 → 4 N2 + 6 H2O
Depending on the NO/NO2 content in the exhaust gas, two important main SCR reactions are:
• Without NO2: Standard SCR:Â
4 NH3 + 4 NO + O2 → 4 N2 + 6 H2O
•With NO2: Fast SCR:Â
4 NH3 + 2 NO + 2 NO2 → 4 N2 + 6 H2O