Selective Catalytic Reduction

Basics

• A system that converts NOx Emissions Into N2 and Water
• This utilizes Ammonia ( Aqueous or Anhydrous ), or Urea Solution turned into ammonia pre-scr chamber, as the reducing agent sprayed over a specialized catalytic converter
• This is typically supplied via aqueous urea called Diesel Exhaust Fluid (Also the Brand Name AdBlue)

Internal Links

• Exhaust Gas Recirculation
• NOx Adsorber

External Links

• The Wikipedia Page on Selective Catalytic Reduction
• An EPA Paper Titled "Air Pollution Technology Fact Sheet" (Mainly Power Plant Level Information)
• A 2019 Section of a Book/Manual (need to find out which) Titled "Chapter 2 Selective Catalytic Reduction" (Mainly Power Plant Level Information)
• A Paper on "DiselNet . Com" Titled "Selective Catalytic Reduction - W. Addy Majewski
• A Supposed "Ammonia Free Selective Catalytic Reduction" system (AF-SCR) Utilizing Carbon Monoxide from the Combustor (Use case was a pulverized coal plant, due to less ash, and more tunability, may be worth a look for engines)
• A Page by CECO Environmental Showcasing their Power Plant Level SCR / SNCR Systems (As well as Low-NOx Burners / Staged Combustion systems)