Coal reburning for cyclone boiler NO sub x control demonstration

Technical Report · Tue Jan 01 04:00:00 EST 1991

OSTI ID:5435525

The coal reburning for cyclone boiler NO{sub x} control demonstration project will be carried out at the Nelson Dewey Station Unit No. 2 of Wisconsin Power and Light in Cassville, Wisconsin. Unit No. 2 is small enough (100 MWe) to limit project costs, but large enough to assure that the reburning technology can be successfully applied to the cyclone-fired utility boiler population. As part of the project, B W's 5 million Btu/hr SBS pilot facility will be utilized to duplicate the operating practices of WP L's Nelson Dewey Unit {number sign}2. The coal which is fired at Nelson Dewy will be fired in the SBS cyclone and will also be utilized as the reburn fuel. During the field test phase it Nelson Dewey Station, emission and performance data will be acquired and analyzed before and after the coal reburn conversion to determine the NO{sub x} reduction and impact on boiler performance. Combining these combustion test results with physical and numerical flow modeling of the technology as applied to Dewey Unit {number sign}2, will provide a comprehensive test program not only for successful application of WP L's Unit, but for the cyclone population as a whole. The control system consists of commercially available equipment, such as a pulverizer, burners, a pneumatic coal transfer system, overfire air ports and a control system, all of which are well proven, reliable equipment that can be readily installed. Extensive power plant modification is not required to implement the reburn technology which will increase the potential for commercialization. Progress is discussed.

• Research Organization: Babcock and Wilcox Co., Cassville, WI (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FC22-90PC89659
• OSTI ID: 5435525
• Report Number(s): DOE/PC/89659-T6; ON: DE91018057
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
20 FOSSIL-FUELED POWER PLANTS
200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
AIR POLLUTION ABATEMENT
AIR POLLUTION CONTROL
BOILERS
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTORS
CONTROL
CYCLONE COMBUSTORS
DOCUMENT TYPES
FOSSIL-FUEL POWER PLANTS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
POLLUTION CONTROL
POWER PLANTS
PROGRESS REPORT
REDUCTION
RETROFITTING
THERMAL POWER PLANTS