How DRB-XCL burners and air heater upgrade reduced NO sub x and improved efficiency at a western utility

Conference · Wed Jan 01 04:00:00 EST 1992 · Proceedings of the American Power Conference; (United States)

OSTI ID:7045414

Becker, W ^[1]; Stalcup, T; Schild, V ^[2]; Kowalski, E ^[3]

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1. Babcock and Wilcox Co., Barberton, OH (US)
2. Black Hills Power and Light Co., Neil Simpson Station, Gillette, WY (US)
3. Stone and Webster Engineering Corp., Denver, CO (US)

The Neil Simpson Unit is a 220,000 lb/hr pulverized coal boiler that was designed to fire a local Wyoming subbituminous coal. During the late 1980s, the Wyoming Department of Air Quality imposed emission limits on the Black Hills Power and Light Co., Neil Simpson Station. The new limits required Black Hills power to control not only particulate and sulfur dioxide (SO{sub 2}) emissions, but also nitrogen oxide (NO{sub x}) emissions. At the same time, Black Hills Power initiated an efficiency improvement study at Neil Simpson Station to investigate methods for reducing net electrical generation costs. This paper addresses the plant efficiency and emissions studies, startup activities, the operating problems and successful operating solutions for NO{sub x} control when firing a Wyoming subbituminous coal. Also included is a summary of the post-0retrofit boiler performance data.

• OSTI ID: 7045414
• Report Number(s): CONF-920432--
• Conference Information: Journal Name: Proceedings of the American Power Conference; (United States) Journal Volume: 54:1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
014000* -- Coal
Lignite
& Peat-- Combustion
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR HEATERS
BOILERS
BURNERS
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
COAL
COMBUSTION
CONTROL
DEVELOPED COUNTRIES
EFFICIENCY
ENERGY SOURCES
FEDERAL REGION VIII
FOSSIL FUELS
FUELS
HEATERS
MATERIALS
NITROGEN COMPOUNDS
NITROGEN OXIDES
NORTH AMERICA
OPERATION
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
PUBLIC UTILITIES
PULVERIZED FUELS
RETROFITTING
SUBBITUMINOUS COAL
THERMOCHEMICAL PROCESSES
USA
WYOMING