skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Natural gas/pulverized-coal cofiring performance testing at an electric-utility boiler. Topical report, June-October 1986

Abstract

A field testing program was conducted at a 570-MW pulverized-coal electric-utility boiler to document the potential of cofiring natural gas with coal. The capacity of the gas equipment is 20% of the boiler rating. The report discusses the use of natural gas for sulfur control, smokeless start-ups, combustion improvement, control of furnace slag, carrying load during coal upsets and improving operation while firing potentially troublesome coals. Gas used for start-up and low load flame stabilization maintained precipitator cleanliness as confirmed by internal inspections. Testing documented the predicted change in flue-gas moisture concentration during cofiring. Also, the flue-gas acid dew point temperature was actually lowered by one to three degrees during cofiring. The optimization test program confirmed that gas use is a convenient and reliable method for maintaining production during coal upsets. The 120-MW design capacity of the gas system was achieved. Gas cofiring can be implemented to achieve an immediate reduction in SO/sub 2/ emissions. This gives greater coal-blending flexibility, while insuring that no SO/sub 2/ violations need occur. Utilizing the warm-up guns resulted in a 15% reduction in nitric oxide emissions.

Authors:
; ; ;
Publication Date:
Research Org.:
Energy Systems Associates, Tustin, CA (USA)
OSTI Identifier:
6147082
Report Number(s):
PB-87-222717/XAB
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; 03 NATURAL GAS; 01 COAL, LIGNITE, AND PEAT; COAL; COCOMBUSTION; FOSSIL-FUEL POWER PLANTS; AIR POLLUTION ABATEMENT; FUELS; NATURAL GAS; SULFUR DIOXIDE; REMOVAL; BOILERS; NITROGEN OXIDES; CARBONACEOUS MATERIALS; CHALCOGENIDES; CHEMICAL REACTIONS; COMBUSTION; ENERGY SOURCES; FLUIDS; FOSSIL FUELS; FUEL GAS; GAS FUELS; GASES; MATERIALS; NITROGEN COMPOUNDS; OXIDATION; OXIDES; OXYGEN COMPOUNDS; POLLUTION ABATEMENT; POWER PLANTS; SULFUR COMPOUNDS; SULFUR OXIDES; THERMAL POWER PLANTS; THERMOCHEMICAL PROCESSES; 200108* - Fossil-Fueled Power Plants- Fuels- (1980-); 034000 - Natural Gas- Combustion; 014000 - Coal, Lignite, & Peat- Combustion

Citation Formats

Booth, R C, Breen, B P, Gallaer, C A, and Glickert, R W. Natural gas/pulverized-coal cofiring performance testing at an electric-utility boiler. Topical report, June-October 1986. United States: N. p., 1987. Web.
Booth, R C, Breen, B P, Gallaer, C A, & Glickert, R W. Natural gas/pulverized-coal cofiring performance testing at an electric-utility boiler. Topical report, June-October 1986. United States.
Booth, R C, Breen, B P, Gallaer, C A, and Glickert, R W. Wed . "Natural gas/pulverized-coal cofiring performance testing at an electric-utility boiler. Topical report, June-October 1986". United States.
@article{osti_6147082,
title = {Natural gas/pulverized-coal cofiring performance testing at an electric-utility boiler. Topical report, June-October 1986},
author = {Booth, R C and Breen, B P and Gallaer, C A and Glickert, R W},
abstractNote = {A field testing program was conducted at a 570-MW pulverized-coal electric-utility boiler to document the potential of cofiring natural gas with coal. The capacity of the gas equipment is 20% of the boiler rating. The report discusses the use of natural gas for sulfur control, smokeless start-ups, combustion improvement, control of furnace slag, carrying load during coal upsets and improving operation while firing potentially troublesome coals. Gas used for start-up and low load flame stabilization maintained precipitator cleanliness as confirmed by internal inspections. Testing documented the predicted change in flue-gas moisture concentration during cofiring. Also, the flue-gas acid dew point temperature was actually lowered by one to three degrees during cofiring. The optimization test program confirmed that gas use is a convenient and reliable method for maintaining production during coal upsets. The 120-MW design capacity of the gas system was achieved. Gas cofiring can be implemented to achieve an immediate reduction in SO/sub 2/ emissions. This gives greater coal-blending flexibility, while insuring that no SO/sub 2/ violations need occur. Utilizing the warm-up guns resulted in a 15% reduction in nitric oxide emissions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1987},
month = {7}
}

Technical Report:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that may hold this item. Keep in mind that many technical reports are not cataloged in WorldCat.

Save / Share: