What Role Does Selective Catalytic Reduction (SCR) Play?
SCR is a vital technology for controlling NOx emissions from diesel engines and industrial processes. The system injects a reductant, usually an aqueous solution of urea, into the exhaust stream. The NOx then reacts with the reductant over a catalyst, typically made of materials like titanium dioxide (TiO2), vanadium pentoxide (V2O5), or zeolites, converting the NOx into N2 and H2O.
