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Method for the catalytic removal of nitrogen oxides from exhaust gases by means of a reducing agent 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • C01B-021/00
  • B01J-008/00
  • G01N-021/00
출원번호 US-0384754 (1989-07-25)
우선권정보 DE-3825206 (1988-07-25)
발명자 / 주소
  • Brand Reinhold (Hanau DEX) Engler Bernd (Hanau DEX) Kleine-Moellhoff Peter (Alzenau DEX) Koberstein Edgar (Alzenau DEX)
출원인 / 주소
  • Degussa Aktiengesellschaft (Frankfurt DEX 03)
인용정보 피인용 횟수 : 63  인용 특허 : 1

초록 ▼

A method for the removal of nitrogen oxides contained in exhaust gases of an optionally fluctuating composition with a temperature of 0°-600°C. by means of catalytic reduction at a preselected stoichiometric ratio between the concentration of reducing agent and the concentration of nitrogen oxide in

대표청구항 ▼

A method of removing nitrogen oxides contained in exhaust gases with a temperature from 0°-600°C. comprising treating said exhaust gases with a reducing agent in the presence of a nitrogen oxide reducing catalyst having active centers at a stoichometric ration between the concentration of reducing a

이 특허에 인용된 특허 (1)

  1. Eichholtz Hans A. (Recklinghausen DEX) Weiler Helmut A. (Velbert DEX), Method of removing oxides of nitrogen from flue gas.
    상세보기

이 특허를 인용한 특허 (63)

  1. Kalwei, Martin; Huennekes, Edgar V., Base metal catalyst.
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  2. Zapf, Friedrich; Pelz, Thorsten; Stegmann, Heico, Calibrated dosing unit, especially of an exhaust gas treatment unit.
    상세보기
  3. Michel Deeba ; Uwe Dahle DE; Stefan Brandt DE; John K. Hochmuth, Catalytic trap with potassium component and method of using the same.
    상세보기
  4. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A., Catalyzed SCR filter and emission treatment method.
    상세보기
  5. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A., Catalyzed SCR filter and emission treatment system.
    상세보기
  6. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A., Catalyzed SCR filter and emission treatment system.
    상세보기
  7. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A., Catalyzed SCR filter and emission treatment system.
    상세보기
  8. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A., Catalyzed SCR filter and emission treatment system.
    상세보기
  9. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A., Catalyzed SCR filter and emission treatment system.
    상세보기
  10. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A., Catalyzed SCR filter and emission treatment system.
    상세보기
  11. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A., Catalyzed SCR filter and emission treatment system.
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  12. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A., Catalyzed SCR filter and emission treatment system.
    상세보기
  13. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A., Catalyzed SCR filter and emission treatment system.
    상세보기
  14. Joseph A. Patchett ; Rudolfus Petrus Verbeek NL; Karl Richard Grimston GB; Gary Wayne Rice ; John Lawrence Calabrese ; Mathijs Van Genderen NL, Control system for mobile NOx SCR applications.
    상세보기
  15. Patchett, Joseph A.; Verbeek, Rudolfus Petrus; Grimston, Karl Richard; Rice, Gary Wayne; Calabrese, John Lawrence; Genderen, Mathijs Van, Control system for mobile NOx SCR applications.
    상세보기
  16. Patchett, Joseph A.; Verbeek, Rudolfus Petrus; Grimston, Karl Richard; Rice, Gary Wayne; Calabrese, John Lawrence; Van Genderen, Mathijs, Control system for mobile NOx SCR applications.
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  17. Patchett,Joseph A.; Verbeek,Rudolfus Petrus; Grimston,Karl Richard; Rice,Gary Wayne; Calabrese,John Lawrence; Van Genderen,Mathus, Control system for mobile NOx SCR applications.
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  18. Geveci, Mert; Osburn, Andrew; Haas, Michael, Control techniques for an SCR aftertreatment system.
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  19. Hammerle Robert Henry ; Adams Karen Marie ; Laing Paul Matthew, Emission control system with a catalyst.
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  20. Hammerle, Robert Henry; Adams, Karen Marie; Laing, Paul Matthew, Emission control system with a catalyst.
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  21. Voss, Kenneth E.; Hallstrom, Kevin A.; Kumar, Sanath V.; Stiebels, Susanne; Vaarkamp, Marius, Emission treatment catalysts, systems and methods.
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  22. Hallstrom, Kevin A.; Kumar, Sanath V.; Stiebels, Susanne; Vaarkamp, Marius, Emission treatment system.
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  23. Hinz, Andreas; Andersson, Lennart, Engine-driven vehicle with exhaust emission control.
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  24. Zapf, Friedrich; Pelz, Thorsten; Stegmann, Heico, Exhaust gas aftertreatment system and method.
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  25. Itoh,Kazuhiro; Tanaka,Toshiaki; Iwasaki,Eiji; Hirota,Shinya, Exhaust gas purification device of internal combustion engine.
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  26. Itoh,Kazuhiro; Tanaka,Toshiaki; Iwasaki,Eiji; Hirota,Shinya, Exhaust gas purification device of internal combustion engine.
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  27. Itoh,Kazuhiro; Tanaka,Toshiaki; Iwasaki,Eiji; Hirota,Shinya, Exhaust gas purification device of internal combustion engine.
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  28. Yeager, Mary L.; Wynkoop, Christopher L.; Jayachandran, Amit, Exhaust system having cross-sensitive sensor.
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  29. Zapf, Friedrich; Stegmann, Heico; Lannig, Andreas; Lang, Klaus; Schmidt, Christian; Branco, Alexandre, Exhaust-gas aftertreatment device.
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  30. Zapf, Friedrich; Stegmann, Heico; Lannig, Andreas; Lang, Klaus; Schmidt, Christian; Branco, Alexandre, Exhaust-gas aftertreatment device.
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  31. Boorse, R. Samuel; Dieterle, Martin, Four-way diesel catalysts and methods of use.
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  32. Maisch, Dieter; Klotz, Stefan; Bleeck, Matthias, Freeze-resistant metering valve.
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  33. Morsbach Bernd,DEX ; Daudel Helmut,DEX ; Gaertner Uwe,DEX, Lowering of the nitrogen oxide levels in exhaust gases by controlled addition of NH.sub.3.
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  34. Jennifer S. Feeley ; Robert J. Farrauto ; Michel Deeba, Method and apparatus for NOx abatement in lean gaseous streams.
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  35. Steichen,John Carl; Morris,Patricia A.; Barnes,John James, Method and apparatus for controlling a gas-emitting process and related devices.
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  36. deRuyter, John C., Method and apparatus for reducing a nitrogen oxide.
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  37. Steichen, John Carl; Morris, Patricia A.; Barnes, John James, Method and apparatus for reducing a nitrogen oxide, and control thereof.
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  38. Steichen, John Carl; Morris, Patricia A.; Barnes, John James, Method and apparatus for reducing a nitrogen oxide, and control thereof.
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  39. Gerhard Wissler DE; Gunther Pajonk DE; Manfred Weigl DE; Lothar Hofmann DE, Method and device for reducing the nitrogen oxides in the exhaust gas of a combustion system.
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  40. Lambert,Christine Kay; Adams,Karen Marie; Hammerle,Robert Henry, Method for adjusting a reductant used in an internal combustion engine to reduce NOx.
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  41. Bauer, Peter; Bentz, Rainer; Fokkelman, Joris; Frank, Joachim; Ketterl, Hermann; Koops, Ingo; Leinfelder, Robert, Method for detecting the minimum opening time of a reducing agent feed device in an exhaust gas aftertreatment system comprising an SCR catalyst.
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  42. Genderen, Mathijs Van, Method for determining catalyst cool down temperature.
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  43. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A., Method for disposing SCR composition on a wall flow monolith.
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  44. Schmelz Helmut,DEX, Method for metering a reagent into a flowing medium.
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  45. Solbrig, Charles E.; Paratore, Jr., Michael J., Method for reducing NH3 release from SCR catalysts during thermal transients.
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  46. Deeba Michel ; Feeley Jennifer S. ; Farrauto Robert J., Method of abating NO.sub.x and a catalytic material therefor.
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  48. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A., Method of forming a catalyzed selective catalytic reduction (SCR) filter.
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  49. Patchett, Joseph Allan; Dettling, Joseph Charles; Przybylski, Elizabeth Alina, Method of forming a catalyzed selective catalytic reduction filter.
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  50. Wickert, Stefan; Mosthaf, Joerg; Fuchs, Christian, Procedure and device to control a reducing agent generation system.
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  51. Chandler, Guy Richard; Rajaram, Raj Rao; Goersmann, Claus Friedrich; Self, Valerie Anne, Process and apparatus for reducing the nitrogen oxide content in exhaust gases by the controlled addition of NH3.
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  52. Hohne Jurgen,DEX ; Strehlau Wolfgang,DEX ; Lox Egbert,DEX ; Kreuzer Thomas,DEX, Process for the operation of a nitrogen oxides storage catalyst.
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  53. Suzuki, Kazunori; Kuroyanagi, Masatoshi; Nishijima, Yoshiaki, Reducing gas generator and solid reductant SCR system having the generator.
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  54. Branco, Alexandre; Stegmann, Heico; Zapf, Friedrich, SCR exhaust gas aftertreatment device.
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  55. Fuchs, Tobias; Lannig, Andreas; Rohrmueller, Ralf; Weidner, Sebastian; Zapf, Friedrich, SCR exhaust gas aftertreatment device.
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  56. Solbrig,Charles E., System for controlling the urea supply to SCR catalysts.
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  57. Wills,J. Stephen; Andrews,Eric B., System for diagnosing reagent solution quality and emissions catalyst degradation.
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  58. Nobuhide Kato JP; Hiroshi Kurachi JP, System for removing NOx from exhaust gases.
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  59. Gong, Jinqian; Shao, Josh S.; Fawad, Quazi Syed, System, methods, and apparatus for low temperature dosing in diesel exhaust systems.
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  60. Hsieh, Ming-Feng; Haas, Michael; Garimella, Phanindra V., Techniques for control of an SCR aftertreatment system.
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  61. Boorse, R. Samuel; Dieterle, Martin, Wall flow filter loaded with SCR catalyst, systems and methods of exhaust gas treatment.
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  62. Patchett,Joseph Allan; Dettling,Joseph Charles, Zone coated catalyst to simultaneously reduce NOand unreacted ammonia.
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  63. Patchett, Joseph Allan; Dettling, Joseph Charles, Zone coated catalyst to simultaneously reduce NOx and unreacted ammonia.
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