Urea-based SNCR goes mainstream at utilities
Utilities are using urea-based Selective Non-Catalytic Reduction (SNCR) for complying with Clean Air Act Amendments (CAAA) for NO{sub x} reduction at power plants. Electric utilities, particularly in the Northeast, are required to reduce NO{sub x} emissions in accordance with state ozone abatement plans, as required by CAAA. But owners and operators must retrofit existing boilers while taking into account the different technology options, economic ramifications, outage scheduling, and potential rate and regulatory ramifications. In the past year-and-a-half, utilities awarded commercial contracts for 11 NO{sub x-} reduction boiler retrofits with urea-based SNCR, Nalco Fuel Tech`s NO{sub x}OUT Process. These 11 boilers burn coal or No. 6 fuel oil. Prior commercial applications were limited to gas-fired boilers located in California, where the Electric Power Research Institute (EPRI) originally developed the technology. Nalco Fuel Tech, EPRI`s sole licensing agent, further developed the technology in terms of utility boiler applications, and now installs it and licenses it.
- OSTI ID:
- 81797
- Journal Information:
- Electric Light and Power, Vol. 73, Issue 5; Other Information: PBD: May 1995
- Country of Publication:
- United States
- Language:
- English
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Evaluation of combined SNCR/SCR for NO{sub x} abatement on a utility boiler
HYBRID SELECTIVE NON-CATALYTIC REDUCTION (SNCR)/SELECTIVE CATALYTIC REDUCTION (SCR) DEMONSTRATION FOR THE REMOVAL OF NOx FROM BOILER FLUE GASES