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Posts Tagged: Selective Catalytic Reduction

Selective Catalytic Reduction — What is it?

What is Selective Catalytic Reduction (SCR)? SCR is a new and advanced technology for reducing emissions in diesel vehicles. SCR reduces nitrogen oxides (NOx) to near-zero levels. How does Selective Catalytic Reduction work? An SCR equipped vehicle routes hot exhaust gases into the SCR system where aqueous urea (Diesel Exhaust Fluid, or DEF) is sprayed onto a special catalyst. The application of the DEF starts a chemical reaction on the catalyst. The process converts nitrogen oxides into nitrogen, water, and small tiny amounts of carbon dioxide (CO2). The exhaust then … Read More

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