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Title: Extended development of gas cofiring to reduce sulfur dioxide and nitric oxide emissions from a tangentially coal-fired utility boiler. Topical report, August 1987-February 1988

Abstract

A field experiment was conducted on a 570-MW coal-fired boiler to investigate the application of gas cofiring to reduce nitric oxide and sulfur dioxide emissions. Testing documented that a 25% reduction in nitric oxide (NOx) emissions could be achieved by biasing fuel to the lower furnace and reducing the excess oxygen concentration. Approximately 6 to 10 percent gas was cofired in order to reach the optimized bias condition. Cofiring natural gas ignitors resulted in reductions in the emission of sulfur dioxide which were greater than the percentage of gas heat input in fifteen of the twenty tests that were conducted. Sulfur dioxide reductions ranging from 1 to 12 percent were documented when firing 1 to 3 percent natural gas. The results indicate that gas fired in the upper furnace region has greater influence over sulfur dioxide reduction. An investigation was made into the mechanism which controls the apparent retention of sulfur.

Authors:
;
Publication Date:
Research Org.:
Energy Systems Associates, Pittsburgh, PA (USA)
OSTI Identifier:
6899874
Report Number(s):
PB-89-102826/XAB
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of this document are not fully legible
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; 42 ENGINEERING; AIR POLLUTION ABATEMENT; BOILERS; FUELS; COAL; COCOMBUSTION; FOSSIL-FUEL POWER PLANTS; NATURAL GAS; NITROGEN OXIDES; PROGRESS REPORT; SULFUR OXIDES; CARBONACEOUS MATERIALS; CHALCOGENIDES; CHEMICAL REACTIONS; COMBUSTION; DOCUMENT TYPES; ENERGY SOURCES; FLUIDS; FOSSIL FUELS; FUEL GAS; GAS FUELS; GASES; MATERIALS; NITROGEN COMPOUNDS; OXIDATION; OXIDES; OXYGEN COMPOUNDS; POLLUTION ABATEMENT; POWER PLANTS; SULFUR COMPOUNDS; THERMAL POWER PLANTS; THERMOCHEMICAL PROCESSES; 200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions; 421000 - Engineering- Combustion Systems

Citation Formats

Booth, R C, and Glickert, R W. Extended development of gas cofiring to reduce sulfur dioxide and nitric oxide emissions from a tangentially coal-fired utility boiler. Topical report, August 1987-February 1988. United States: N. p., 1988. Web.
Booth, R C, & Glickert, R W. Extended development of gas cofiring to reduce sulfur dioxide and nitric oxide emissions from a tangentially coal-fired utility boiler. Topical report, August 1987-February 1988. United States.
Booth, R C, and Glickert, R W. Mon . "Extended development of gas cofiring to reduce sulfur dioxide and nitric oxide emissions from a tangentially coal-fired utility boiler. Topical report, August 1987-February 1988". United States.
@article{osti_6899874,
title = {Extended development of gas cofiring to reduce sulfur dioxide and nitric oxide emissions from a tangentially coal-fired utility boiler. Topical report, August 1987-February 1988},
author = {Booth, R C and Glickert, R W},
abstractNote = {A field experiment was conducted on a 570-MW coal-fired boiler to investigate the application of gas cofiring to reduce nitric oxide and sulfur dioxide emissions. Testing documented that a 25% reduction in nitric oxide (NOx) emissions could be achieved by biasing fuel to the lower furnace and reducing the excess oxygen concentration. Approximately 6 to 10 percent gas was cofired in order to reach the optimized bias condition. Cofiring natural gas ignitors resulted in reductions in the emission of sulfur dioxide which were greater than the percentage of gas heat input in fifteen of the twenty tests that were conducted. Sulfur dioxide reductions ranging from 1 to 12 percent were documented when firing 1 to 3 percent natural gas. The results indicate that gas fired in the upper furnace region has greater influence over sulfur dioxide reduction. An investigation was made into the mechanism which controls the apparent retention of sulfur.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {8}
}

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