Long-term SNCR demonstration at B.L. England Station - Unit 1. Final report
Technical Report
·
OSTI ID:64141
Atlantic Electric recently completed a multi-phase effort to determine the feasibility of applying NO{sub x}OUT technology for Selective Non-Catalytic Reduction (SNCR) to reduce NO{sub x} emissions at B.L. England Station Unit 1, a coal-fired cyclone unit. This effort was undertaken to determine RACT as defined by the New Jersey Department of Environmental Protection and Energy and as required under Title 1 for ozone non-attainment of the 1990 Amendment to the Clean Air Act. The multi-phase effort included development of unit temperature profiles, computer fluid dynamic and chemical modeling, short term conceptual testing, and a longer term demonstration of SNCR under unit dispatch conditions. The SNCR system was able to maintain an average reduction of 30% during the test while maintaining NH{sub 3} slip at less than 10 ppmv. Evaluations of the system at NO{sub x} setpoints below 0.9 lb/MMBtu while simultaneously maintaining NH{sub 3} slip at less than 10 ppmv were not successful. It should be noted, however, that air heater fouling during the test periods was probably exacerbated by low ambient air temperatures and failure of the steam coil air heater, in conjunction with inoptimal chemical injection response times associated with the test skid. At a NO{sub x} emission limit of 0.9 lb/MMBtu, the cost for NO{sub x} control was estimated at $937/ton. This cost covers levelized capital costs and projected reagent cost, along with minor adjustments for added maintenance, decreased boiler efficiency, and waste water treatment.
- Research Organization:
- Electric Power Research Inst., Palo Alto, CA (United States); Carnot, Tustin, CA (United States)
- Sponsoring Organization:
- Electric Power Research Inst., Palo Alto, CA (United States)
- OSTI ID:
- 64141
- Report Number(s):
- EPRI-TR--105068
- Country of Publication:
- United States
- Language:
- English
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