Disposal, recycle, and utilization of modified fly ash from hydrated lime injection into coal-fired utility boilers

Conference · Thu Jan 01 00:00:00 EST 1987 · Proceedings, Annual Meeting, Air Pollution Control Association; (USA)

OSTI ID:5169934

Dahlin, R S; Lishawa, C L; Clark, C C ^[1]; Nolan, P S ^[2]

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1. Southern Research Inst., Birmingham, AL (USA)
2. U.S. Environmental Protection Agency, Research Triangle Park, NC (US)

This paper presents an assessment of the disposal, utilization, and recycle of a modified fly ash from the injection of hydrated lime into a coal-fired utility boiler. The hydrated lime injection process is being developed by the US Environmental Protection Agency (EPA) as a low-cost alternative for achieving moderate degrees of SO/sub 2/ control at coal-fired power plants. In this process, hydrated lime is injected into the upper furnace where the flue gas temperature is about 2200{sup 0}F (1200{sup 0}C). The hydrated lime decomposes, and the resulting quicklime, CaO, captures SO/sub 2/ according to a formula given.

• OSTI ID: 5169934
• Report Number(s): CONF-870695-; CODEN: PRAPA
• Journal Information: Proceedings, Annual Meeting, Air Pollution Control Association; (USA), Vol. 1; Conference: 80. annual meeting of the Air Pollution Control Association, New York, NY (USA), 21-26 Jun 1987; Other Information: Technical Paper 87-27A.4; ISSN 0193-9688
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
20 FOSSIL-FUELED POWER PLANTS
COAL
WASTE PRODUCT UTILIZATION
FLY ASH
RECYCLING
ELECTROSTATIC PRECIPITATORS
FLUIDIZED BED BOILERS
LIME-LIMESTONE WET SCRUBBING PROCESSES
LIMING
OPTIMIZATION
RESOURCE RECOVERY FACILITIES
US EPA
AEROSOL WASTES
ASHES
BOILERS
CARBONACEOUS MATERIALS
ENERGY FACILITIES
ENERGY SOURCES
EQUIPMENT
FOSSIL FUELS
FUELS
INDUSTRIAL PLANTS
MATERIALS
NATIONAL ORGANIZATIONS
POLLUTION CONTROL EQUIPMENT
RESIDUES
SCRUBBING
US ORGANIZATIONS
WASTE PROCESSING PLANTS
WASTES
010800* - Coal
Lignite
& Peat- Waste Management
010500 - Coal
Lignite
& Peat- Products & By-Products
320305 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management
540210 - Environment
Terrestrial- Basic Studies- (1990-)
200103 - Fossil-Fueled Power Plants- Waste-Fueled Systems