SNOX demonstration project: Volume 2, Project performance and economics. Final report

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The SNOX process, developed by Haldor Topsoe A/S and demonstrated and marketed in North America by ABB Environmental Systems (ABBES), is an innovative process which removes both sulfur dioxide and nitrogen oxides from power plant flue gases. Sulfur dioxide is recovered as high purity, concentrated sulfuric acid and nitrogen oxides are converted to nitrogen gas and water vapor; no additional waste streams are produced. As part of the Clean Coal Technology Program, this project was demonstrated under joint sponsorship from the US Department of Energy, Ohio Coal Development Office, ABBES, Snamprogetti, and Ohio Edison. The project objective was to demonstrate ... continued below

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211 p.

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Creator: Unknown. July 1, 1996.

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Description

The SNOX process, developed by Haldor Topsoe A/S and demonstrated and marketed in North America by ABB Environmental Systems (ABBES), is an innovative process which removes both sulfur dioxide and nitrogen oxides from power plant flue gases. Sulfur dioxide is recovered as high purity, concentrated sulfuric acid and nitrogen oxides are converted to nitrogen gas and water vapor; no additional waste streams are produced. As part of the Clean Coal Technology Program, this project was demonstrated under joint sponsorship from the US Department of Energy, Ohio Coal Development Office, ABBES, Snamprogetti, and Ohio Edison. The project objective was to demonstrate the SO{sub 2}/NO{sub x} reduction efficiencies of the SNOX process on an electric power plant firing high-sulfur Ohio Coal. A 35-MWe demonstration has been conducted on a 108-MWe unit, Ohio Edison`s Niles Plant Unit 2, in Trumbull County, Ohio. The $31.4 million project began site preparation in November 1990 and commenced treating flue gas in March of 1992. A parametric test program has been completed. This report presents a description of the technology, results from the 33 month testing and operation phase, and information from a commercial scale economic evaluation. During the demonstration, the process met or exceeded its design goals of 95% SO{sub 2} removal, 90% NO{sub x} removal, and production of commercial grade (>93.2 wt.%) sulfuric acid. The plant was operated for approximately 8000 hours and produced more than 5600 tons of acid, which was purchased and distributed by a local supplier to end users. Projected economics for a 500 MWe commercial SNOX plant indicate a total capital requirement of 305 $/kW, levelized incremental cost of power at 6.1 mills/kWh, 219 $/ton of SO{sub 2} removed, and 198 $/ton of SO{sub 2}+NO{sub x} removed (all at constant dollars).

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211 p.

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OSTI as DE96050314

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  • Other Information: PBD: Jul 1996

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  • Other: DE96050314
  • Report No.: DOE/PC/89655--T22
  • Grant Number: FC22-90PC89655
  • DOI: 10.2172/366958 | External Link
  • Office of Scientific & Technical Information Report Number: 366958
  • Archival Resource Key: ark:/67531/metadc685519

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

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  • July 1, 1996

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Nov. 25, 2015, 2:56 p.m.

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SNOX demonstration project: Volume 2, Project performance and economics. Final report, report, July 1, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc685519/: accessed December 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.