Coal Reburning for Cyclone Boiler NO{sub x} Control Demonstration. Quarterly report No. 11, October--December 1992

Technical Report · Thu Dec 31 04:00:00 EST 1992

DOI:https://doi.org/10.2172/10164231· OSTI ID:10164231

The project involves retrofitting/testing the reburning technology at Wisconsin Power & Light`s 100 MWe Nelson Dewey unit No. 2 in Cassville, Wisconsin to determine the commercial applicability of this technology to reduce NO{sub x} emission levels. The final set of performance tests on Lamar coal were carried out from September 27 through October 9, 1992. Hazardous air pollutant (HAP) testing was performed on Lamar coal from November 2 through November 9, 1992. Also, parametric optimization testing on western sub-bituminous coal was performed from November 16 through December 11, 1992. Both the HAP and western fuel testing were additions to the original project testing scope of Phase III. As of the end of this quarterly report period, project Phase III testing is complete. Preliminary results with western sub-bituminous coal indicate NO{sub 4} reductions in excess of 50% down to the 50% load range. In general, similar reductions are experienced but at a less aggressive stoichiometry in the reburn zone. Accordingly, an additional few percent of NO{sub 4} reduction at the same stoichiometry are noted with the western fuel compared to Lamar results.

• Research Organization: Babcock and Wilcox Co., Cassville, WI (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FC22-90PC89659
• OSTI ID: 10164231
• Report Number(s): DOE/PC/89659--T12; ON: DE93016927
• Country of Publication: United States
• Language: English

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