Enhancing the use of coals by gas reburning-sorbent injection. Quarterly report, April 1, 1995--June 30, 1995

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The objective of this project is to evaluate and demonstrate a cost effective emission control technology for acid rain precursors, oxides of nitrogen (NO{sub x}) and sulfur (SO{sub x}), on two coal fired utility boilers in Illinois. The units selected are representative of pre-NSPS design practices: tangential and cyclone fired. Work on a third unit, wall fired, has been stopped because of funding limitations. The specific objectives are to demonstrate reductions of 60 percent in NO{sub x} and 50 percent in SO{sub x} emissions, by a combination of two developed technologies, gas reburning (GR) and sorbent injection (SI). With GR, ... continued below

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17 p.

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Creator: Unknown. August 11, 1995.

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Description

The objective of this project is to evaluate and demonstrate a cost effective emission control technology for acid rain precursors, oxides of nitrogen (NO{sub x}) and sulfur (SO{sub x}), on two coal fired utility boilers in Illinois. The units selected are representative of pre-NSPS design practices: tangential and cyclone fired. Work on a third unit, wall fired, has been stopped because of funding limitations. The specific objectives are to demonstrate reductions of 60 percent in NO{sub x} and 50 percent in SO{sub x} emissions, by a combination of two developed technologies, gas reburning (GR) and sorbent injection (SI). With GR, about 80-85 percent of the coal fuel is fired in the primary combustion zone. The balance of the fuel is added downstream as natural gas to create a slightly fuel rich environment in which NO{sub x} is converted to N{sub 2}. The combustion process is completed by overfire air addition. SO{sub x} emissions are reduced by injecting dry sorbents (usually calcium based) into the upper furnace. The sorbents trap SO{sub x} as solid sulfates that are collected in the particulate control device. This project is conducted in three phases at each site: (1) Design and Permitting, (2) Construction and Startup, and (3) Operation, Data Collection, Reporting and Disposition. Technology transfer to industry is accomplished through the formation of an industry panel. Phase I of the project commenced on June 5, 1987. Phases I, II and III for the Illinois Power Project have been completed; Phases I and II for the CWLP project have been completed; Phase III is in progress. All site activities have been completed with the exception of restoration at CWLP.

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17 p.

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OSTI as DE96002418

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  • Other Information: PBD: 11 Aug 1995

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  • Other: DE96002418
  • Report No.: DOE/PC/79796--T44
  • Grant Number: FC22-87PC79796
  • DOI: 10.2172/135069 | External Link
  • Office of Scientific & Technical Information Report Number: 135069
  • Archival Resource Key: ark:/67531/metadc618594

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  • August 11, 1995

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  • June 16, 2015, 7:43 a.m.

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Enhancing the use of coals by gas reburning-sorbent injection. Quarterly report, April 1, 1995--June 30, 1995, report, August 11, 1995; United States. (digital.library.unt.edu/ark:/67531/metadc618594/: accessed May 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.