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Title: Evaluation of gas/coal cofiring and gas/gas reburning for emissions control on a tangentially-fired boiler. Final report, September 1991-September 1992

Abstract

Field tests on a 71 MWe tangentially-fired boiler showed that gas/coal cofiring and gas/gas reburning are effective in reducing pollutant emissions. For 34 percent gas cofiring, NOx, SO2, and CO2 emissions were reduced by 35-45, 34, and 12 percent, respectively, compared to 100 percent coal firing. The use of overfire air combined with gas cofiring resulted in NOx reductions of up to 65 percent. Carbon in ash was reduced by 20-30 percent. Heat efficiency was reduced by 1.72 percent due to the increased moisture content of the combined flue gas. There was no change in boiler exit gas temperature, main steam and reheat steam temperatures. Changes in attemperation flow rates were minor.

Authors:
; ;
Publication Date:
Research Org.:
Energy and Environmental Research Corp., Orrville, OH (United States). Engineering Services Group
OSTI Identifier:
6368266
Report Number(s):
PB-93-202471/XAB
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
03 NATURAL GAS; 20 FOSSIL-FUELED POWER PLANTS; 01 COAL, LIGNITE, AND PEAT; COAL; COCOMBUSTION; NATURAL GAS; ACID RAIN; AIR POLLUTION ABATEMENT; ASHES; BOILERS; CARBON DIOXIDE; EFFICIENCY; FIELD TESTS; FLUE GAS; FOSSIL-FUEL POWER PLANTS; GASEOUS WASTES; HEAT; MOISTURE; NITROGEN OXIDES; POLLUTION CONTROL EQUIPMENT; STATISTICAL DATA; STEAM; SULFUR DIOXIDE; TEMPERATURE DEPENDENCE; ATMOSPHERIC PRECIPITATIONS; CARBON COMPOUNDS; CARBON OXIDES; CARBONACEOUS MATERIALS; CHALCOGENIDES; CHEMICAL REACTIONS; COMBUSTION; COMBUSTION PRODUCTS; DATA; ENERGY; ENERGY SOURCES; EQUIPMENT; FLUIDS; FOSSIL FUELS; FUEL GAS; FUELS; GAS FUELS; GASES; INFORMATION; MATERIALS; NITROGEN COMPOUNDS; NUMERICAL DATA; OXIDATION; OXIDES; OXYGEN COMPOUNDS; POLLUTION ABATEMENT; POWER PLANTS; RAIN; RESIDUES; SULFUR COMPOUNDS; SULFUR OXIDES; TESTING; THERMAL POWER PLANTS; THERMOCHEMICAL PROCESSES; WASTES; 030700* - Natural Gas- Waste Management; 200202 - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions; 010900 - Coal, Lignite, & Peat- Environmental Aspects

Citation Formats

Angello, L C, Marquez, A, and Hong, C C. Evaluation of gas/coal cofiring and gas/gas reburning for emissions control on a tangentially-fired boiler. Final report, September 1991-September 1992. United States: N. p., 1993. Web.
Angello, L C, Marquez, A, & Hong, C C. Evaluation of gas/coal cofiring and gas/gas reburning for emissions control on a tangentially-fired boiler. Final report, September 1991-September 1992. United States.
Angello, L C, Marquez, A, and Hong, C C. Mon . "Evaluation of gas/coal cofiring and gas/gas reburning for emissions control on a tangentially-fired boiler. Final report, September 1991-September 1992". United States.
@article{osti_6368266,
title = {Evaluation of gas/coal cofiring and gas/gas reburning for emissions control on a tangentially-fired boiler. Final report, September 1991-September 1992},
author = {Angello, L C and Marquez, A and Hong, C C},
abstractNote = {Field tests on a 71 MWe tangentially-fired boiler showed that gas/coal cofiring and gas/gas reburning are effective in reducing pollutant emissions. For 34 percent gas cofiring, NOx, SO2, and CO2 emissions were reduced by 35-45, 34, and 12 percent, respectively, compared to 100 percent coal firing. The use of overfire air combined with gas cofiring resulted in NOx reductions of up to 65 percent. Carbon in ash was reduced by 20-30 percent. Heat efficiency was reduced by 1.72 percent due to the increased moisture content of the combined flue gas. There was no change in boiler exit gas temperature, main steam and reheat steam temperatures. Changes in attemperation flow rates were minor.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {3}
}

Technical Report:
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