Micronized coal reburning for NO{sub x} control on a 175 MWe unit
Conference
·
OSTI ID:45149
The Tennessee Valley Authority (TVA) has been selected for the Department of Energy`s (DOE`s) Clean Coal Technology IV program to demonstrate Micronized coal reburn technology for control of nitrogen oxide (NO{sub x}) emissions on a 175 MWe wall-fired steam generator at its Shawnee Fossil Plant. As the technology of the MicroFuel Department of Fuller Power Corporation makes this demonstration feasible, TVA has selected them as the prime contractor for the project and partner in the commercialization of this technology. This retrofit demonstration is expected to decrease NO, emissions by 50 to 60 percent. Up to 30 percent of the total fuel fired in the furnace will be micronized coal injected in the upper furnace creating a fuel-rich reburn zone. Overfire air will be injected at high velocity for good furnace gas mixing above the reburn zone to insure complete combustion. Shawnee Station is indicative of a large portion of boilers in TVA`s and the nation`s utility operating base. Micronized coal reburn technology compares favorably with other NOx control technologies and yet offers additional performance benefits. This paper will focus on micronized coal reburn technology and the plans for a full-scale demonstration at Shawnee.
- OSTI ID:
- 45149
- Report Number(s):
- CONF-930413--
- Country of Publication:
- United States
- Language:
- English
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