Air Pollution Control Technology Fact Sheet
The OM costs of using SCR are dr iven by the reagent usage, catalyst replacement, and increased electrical power usage. SCR applications on large units (> 100 MMBtu/hr) generally require 20,000 to 100,000 gallons of reagent per week (EPA, 2002). The catalyst operat ing life is on the order of 25,000 hours for coalfired