Selective catalytic reduction (SCR) means converting nitrogen oxides, also referred to as NO x with the aid of a catalyst into diatomic nitrogen (N 2), and water (H 2 O). A reductant, typically anhydrous ammonia (NH 3), aqueous ammonia (NH 4 OH), or a urea (CO(NH 2) 2) solution, is added to a stream of flue or exhaust gas and is reacted onto a ...

Selective Catalytic Reduction (SCR) is an advanced active emissions control technology system that reduces tailpipe emissions of nitrogen oxides (NOx) down to near-zero levels in newer generation diesel-powered vehicles and equipment.

Jan 10, 2024 · While catalytic converters act like a filter that traps harmful emissions, SCR systems actively inject Diesel Exhaust Fluid (DEF) into the exhaust, which chemically reacts with nitrogen oxides (NOx) to form harmless nitrogen and water.

Jun 18, 2021 · It involves injecting a special fluid into the exhaust gas of a diesel engine. The fluid reacts with the NOx pollutants, reducing them to their constituent parts of nitrogen, water and carbon...

Feb 25, 2024 · Selective Catalytic Reduction (SCR) is an advanced emission control technology used to reduce nitrogen oxide (NOx) emissions from various sources, including power plants, industrial facilities, and vehicles.

What is Selective Catalytic Reduction (SCR)? SCR is a technology that uses a urea-based diesel exhaust fluid (DEF) and a catalytic converter to significantly reduce oxides of nitrogen (NOx) emissions.

SCR (Selective Catalytic Reduction) systems are used to minimize dangerous Nitrous Oxide (NOx) emissions from diesel cars. It works by pumping automotive-grade urea, or Diesel Exhaust Fluid (DEF), into the exhaust stream of a diesel engine through a specifically designed catalyst.

Jul 21, 2024 · One key technology that has revolutionized diesel engine performance is Selective Catalytic Reduction (SCR) using Diesel Exhaust Fluid (DEF). SCR by diesel exhaust fluid not only significantly reduces harmful emissions but also enhances the overall efficiency of diesel engines.

Using advanced catalyst technology, Selective Catalytic Reduction (SCR) changes harmful nitrogen oxides (NOx) into harmless nitrogen (N2) and water (H2O). This process reduces NOx emissions by 70% to 95% in utility and industrial boilers.

Oct 22, 2015 · Selective Catalytic Reduction (SCR) is a proven and advanced active emissions control technology system that injects a liquid-reductant agent through a special catalyst into the exhaust stream of a diesel engine.