FUEL LEAN BIOMASS REBURNING IN COAL-FIRED BOILERS

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This final technical report describes research conducted between July 1, 2000, and June 30, 2002, for the project entitled ''Fuel Lean Biomass Reburning in Coal-Fired Boilers,'' DOE Award No. DE-FG26-00NT40811. Fuel Lean Biomass Reburning is a method of staging fuel within a coal-fired utility boiler to convert nitrogen oxides (NOx) to nitrogen by creating locally fuel-rich eddies, which favor the reduction of NOx, within an overall fuel lean boiler. These eddies are created by injecting a supplemental fuel source, designated as the reburn fuel, downstream of the primary combustion zone. Chopped biomass was the reburn fuel for this project. Four ... continued below

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34 pages

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Sweterlitsch, Jeffrey J. & Brown, Robert C. July 1, 2002.

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Description

This final technical report describes research conducted between July 1, 2000, and June 30, 2002, for the project entitled ''Fuel Lean Biomass Reburning in Coal-Fired Boilers,'' DOE Award No. DE-FG26-00NT40811. Fuel Lean Biomass Reburning is a method of staging fuel within a coal-fired utility boiler to convert nitrogen oxides (NOx) to nitrogen by creating locally fuel-rich eddies, which favor the reduction of NOx, within an overall fuel lean boiler. These eddies are created by injecting a supplemental fuel source, designated as the reburn fuel, downstream of the primary combustion zone. Chopped biomass was the reburn fuel for this project. Four parameters were explored in this research: the initial oxygen concentration ranged between 1%-6%, the amount of biomass used as the reburn fuel ranged between from 0%-23% of the total % energy input, the types of biomass used were low nitrogen switchgrass and high nitrogen alfalfa, and the types of carrier gases used to inject the biomass (nitrogen and steam). Temperature profiles and final flue gas species concentrations are presented in this report. An economic evaluation of a potential full-scale installation of a Fuel-Lean Biomass Reburn system using biomass-water slurry was also performed.

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34 pages

Notes

OSTI as DE00810443

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  • Other Information: PBD: 1 Jul 2002

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  • Report No.: NONE
  • Grant Number: FG26-00NT40811
  • DOI: 10.2172/810443 | External Link
  • Office of Scientific & Technical Information Report Number: 810443
  • Archival Resource Key: ark:/67531/metadc739227

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • July 1, 2002

Added to The UNT Digital Library

  • Oct. 18, 2015, 6:40 p.m.

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  • Jan. 3, 2017, 2:25 p.m.

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Sweterlitsch, Jeffrey J. & Brown, Robert C. FUEL LEAN BIOMASS REBURNING IN COAL-FIRED BOILERS, report, July 1, 2002; United States. (digital.library.unt.edu/ark:/67531/metadc739227/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.