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Multi-compartment overfire air and N-agent injection method and system for nitrogen oxide reduction in flue gas

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B01D-050/00
출원번호 US-0014930 (2008-01-16)
등록번호 US7892499 (2011-02-08)
발명자 / 주소
  • Swanson, Larry William
  • Zhou, Wei
  • Moyeda, David Kelly
  • Payne, Roy
출원인 / 주소
  • General Electric Company
대리인 / 주소
    Nixon & Vanderhye P.C.
인용정보 피인용 횟수 : 0  인용 특허 : 36

초록

A method of decreasing a concentration of nitrogen oxides in a combustion gas flowing through a vessel including: generating a flue gas in a combustion zone of the vessel, the flue gas containing nitrogen oxides and carbon monoxide; providing overfire air into a burnout zone of the vessel from a fir

대표청구항

What is claimed is: 1. A combustion system comprising:a vertical chamber defining an combustion zone internal to the chamber;a burner adjacent the vertical chamber and supplying fuel to the combustion zone;an overfire air duct supplying overfire air to the combustion chamber, wherein the overfire ai

이 특허에 인용된 특허 (36)

  1. Marion John L. (Simsbury CT), Advanced overfire air system for NOx control.
  2. Hura Harjit S. ; Breen Bernard P. ; Gabrielson James E., Apparatus and method for NO.sub.x reduction by selective injection of natural gas jets in flue gas.
  3. Anderson David K. (East Longmeadow MA), Char reinjection system for bark fired furnace.
  4. Wormser Alex F. (Marblehead MA), Coal burning arrangement.
  5. Leavitt Frederick W. (North Tonawanda NY), Duplex adsorption process.
  6. Dreizler Walter (Brachetweg 16 7000 Stuttgart 75 DEX) Dreizler Ulrich (Verenaweg 3 7208 Spaichingen DEX), Furnace blower with external gas recycling for the reduction of NOx.
  7. Gordon ; Jr. Merrill K. (P.O. Box 841 Winfield KS 67156), Heat recovery apparatus and an improved heat recovery method.
  8. Swoboda Duane P. (Columbus NE) Largis Kevin A. (Columbus NE) Bruns Wayne A. (Beatrice NE) Jurgens Mark A. (Pickrell NE) Kirby Raymond V. (Lincoln NE) Penner Sidney S. (Odell NE) Cheek Ronald M. (Full, Injection lance for uniformly injecting anhydrous ammonia and air into a boiler cavity.
  9. Kubota Norikazu,JPX, Low NO.sub.x burner and method of controlling recirculation of exhaust gas.
  10. Rabovitser Iosif K. ; Knight Richard ; Khinkis Mark J. ; Abbasi Hamid A. ; Wohadlo Stan, Low NOx pulverized solid fuel combustion process and apparatus.
  11. Ake Terence ; Beittel Roderick ; Lisauskas Robert A. ; Reicker Eric, Low emission U-fired boiler combustion system.
  12. Ashworth Robert ; Murrell Frederick J. ; Zawadzki Edward A., Low nitrogen oxides emissions from carbonaceous fuel combustion using three stages of oxidation.
  13. Ashworth Robert A., Low nitrogen oxides emissions using three stages of fuel oxidation and in-situ furnace flue gas recirculation.
  14. Marx,Peter D.; Pickering,Robert W.; Trippel,Charles E., Method and apparatus for adding reducing agent to secondary overfire air stream.
  15. Spokoyny Felix E. (Costa Mesa CA) Krigmont Henry V. (Seal Beach CA), Method and apparatus for reducing NOx emissions.
  16. Landreth Ronald R. (Crown Point IN) Anderson Lee R. (Griffith IN), Method and apparatus for reducing sulfur dioxide content in flue gases.
  17. Vier Fritz (Monheim DEX) Baumgart Heinz (Langenfeld DEX) Wiese Dietrich (Hille DEX) Michalke Robert (Duisburg DEX), Method and apparatus for reducing the NOxcontent of flue gas in coal-dust-fired combustion systems.
  18. Hiltunen Matti A. (Karhula FIX) Nieminen Jorma J. (Varkaus FIX), Method and apparatus for utilizing biofuel or waste material in energy production.
  19. Ashworth Robert A. ; Morrison Donald K. ; Payne Roy, Method and system for reducing nitrogen oxide and sulfur oxide emissions from carbonaceous fuel combustion flue gases.
  20. Wunning Joachim (Berghalde 20 7250 Leonberg 7 DEX), Method for apparatus for combusting fuel in a combustion chamber.
  21. Zamansky Vladimir M. ; Maly Peter M. ; Cole Jerald A. ; Lissianski Vitali V. ; Seeker William Randall, Method for reducing NOX in combustion flue gas using metal-containing additives.
  22. Kokkinos Angelos, Method for reducing NOx emissions with minimal increases in unburned carbon and waterwall corrosion.
  23. Griffin Edwin M., Method of improving the performance of a cyclone furnace for difficult to burn materials, and improved cyclone furnace thereof.
  24. Lissianski Vitali V. ; Zamansky Vladimir M. ; Lyon Richard K. ; Payne Roy, Method of reducing NOx in a combustion flue gas.
  25. Vier Fritz (Monheim DEX) Schulenburg Michael (Metzkausen DEX) Wiese Dietrich (Hille DEX), Nitrogen oxide reduction in furnaces.
  26. McCartney Michael S. (Bloomfield CT) Pollock William H. (East Granby CT), Overfire air admission with varying momentum air streams.
  27. Rabovitser Iosif K. ; Khinkis Mark J. ; Roberts Michael J., Process and apparatus for emissions reduction using partial oxidation of combustible material.
  28. Lautenschlger Friedrich W. (Dsseldorf DEX), Process and apparatus for operating a firebox with solid gasifiable fuel having poor kindling properties and low volatil.
  29. Schaub Georg (Oberursel DEX) Reimert Rainer (Idstein-Krffel DEX) Lffler Johannes (Bad Homburg DEX) Beisswenger Hans (Bad Soden DEX), Process for gasifying waste materials which contain combustible constituents.
  30. Ringel Helmut (Niederzier-Hambach DEX), Process for heat-treating refuse and equipment to carry out the process.
  31. Chawla Jogindar M. (Ettlingen DEX) von Bergman ; deceased Joachim (late of Mulheim/Ruhr DEX by Marina von Bergmann ; administratrix) Pachaly Reinhard (Kerpen DEX), Process for minimizing pollutant concentrations in combustion gases.
  32. Epperly William R. (New Canaan CT) O\Leary John H. (Danbury CT) Sullivan James C. (Norwalk CT) Sprague Barry N. (West Haven CT), Process for nitrogen oxides reduction with minimization of the production of other pollutants.
  33. Diep Daniel V. (Aurora IL) Lin M. Linda (Naperville IL) Christiansen Per B. (Naperville IL), Process for pollution control.
  34. Burton Albert A. (Norwalk CT), Process for reducing the concentration of pollutants in an effluent.
  35. Khinkis Mark J. ; Rabovitser Iosif K. ; Roberts Michael J., Reburn process.
  36. Seeker, William Randall; Payne, Roy; Swanson, Larry William, Step-diffuser for overfire air and overfire air/N-agent injector systems.
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