SCR

Selective Catalytic Reduction (SCR) is an advanced emission control technology used to reduce nitrogen oxides (NOₓ) from industrial exhaust gases, particularly from power plants, refineries, and large combustion engines. The process involves injecting a reductant—typically ammonia or urea—into the flue gas, which then passes over a catalyst bed where NOₓ is chemically converted into harmless nitrogen (N₂) and water vapor (H₂O). SCR systems are highly effective, achieving NOₓ removal efficiencies of up to 95%, and are a key solution for meeting stringent environmental regulations related to air pollution and smog control.