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Zone coated catalyst to simultaneously reduce NOand unreacted ammonia

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B01D-050/00
출원번호 US-0925018 (2004-08-23)
등록번호 US-7481983 (2009-01-27)
발명자 / 주소
  • Patchett,Joseph Allan
  • Dettling,Joseph Charles
출원인 / 주소
  • BASF Catalysts LLC
대리인 / 주소
    Brown,Melanie L.
인용정보 피인용 횟수 : 18  인용 특허 : 27

초록

Provided is an emissions treatment system and method for reducing NOx emissions in the exhaust stream produced from an internal combustion engine. The system has an injector for periodically metering ammonia or an ammonia precursor into an exhaust stream; and a first substrate with a first SCR catal

대표청구항

What is claimed: 1. An emissions treatment system, comprising: a) an injector for periodically metering ammonia or an ammonia precursor into an exhaust stream; b) a first substrate comprising a first SCR catalyst composition, downstream of the injector; wherein the first substrate has an inlet end,

이 특허에 인용된 특허 (27)

  1. Nojima Shigeru (Hiroshima JPX) Tokuyama Rie (Hiroshima JPX) Iida Kouzo (Hiroshima JPX), Ammonia decomposition catalysts.
  2. Blumrich Stephan (Muehlheim DEX) Brand Reinhold (Hanau DEX) Engler Bernd (Hanau DEX) Honnen Wolfgang (Bruchkoebel DEX) Koberstein Edgar (Alzenau DEX), Catalyst for purifying exhaust gases from internal combustion engines and gas turbines operated at above the stoichiomet.
  3. Knapton Arthur G. (Henley on Thames GB2) McGill Ian R. (Thatcham GB2), Catalysts for oxidation and reduction.
  4. Atmur Steven Donald ; Strasser Thomas Edward, Ceramic catalytic converter.
  5. Farrauto Robert J. (Westfield NJ) Voss Kenneth E. (Somerville NJ) Heck Ronald M. (Frenchtown NJ), Ceria-alumina oxidation catalyst.
  6. Lane William H. (Chillicothe IL) Peterson Randy N. (Peoria IL) Smith Aaron L. (East Peoria IL) White Scott T. (East Peoria IL) Learned Daniel J. (Peoria IL), Combustion exhaust purification system and method.
  7. 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.
  8. Byrne John W. (Edison NJ), Method for reduction of nitrogen oxides with ammonia using promoted zeolite catalysts.
  9. Brand Reinhold (Hanau DEX) Engler Bernd (Hanau DEX) Kleine-Moellhoff Peter (Alzenau DEX) Koberstein Edgar (Alzenau DEX), Method for the catalytic removal of nitrogen oxides from exhaust gases by means of a reducing agent.
  10. Shiraishi Tatsuo (Niihama JA) Shimizu Shinkichi (Niihama JA) Ichihashi Hiroshi (Niihama JA) Shindo Tadashi (Niihama JA) Kato Fumiyoshi (Niihama JA), Method for treating ammonia-containing gases.
  11. Gandhi Haren S. (Farmington Hills MI) Adams Karen M. (Dearborn Heights MI), Method of using a simplified low cost catalyst system.
  12. Iida Kouzo,JPX ; Nojima Shigeru,JPX ; Obayashi Yoshiaki,JPX ; Kobayashi Norihisa,JPX ; Serizawa Satoru,JPX, Methods of denitrating exhaust gases.
  13. Iida Kouzo,JPX ; Nojima Shigeru,JPX ; Obayashi Yoshiaki,JPX ; Kobayashi Norihisa,JPX ; Serizawa Satoru,JPX, Methods of denitrating exhaust gases.
  14. Voss Kenneth E. (Somerville NJ) Yavuz Bulent O. (Plainfield NJ) Farrauto Robert J. (Westfield NJ) Galligan Michael P. (Clark NJ), Oxidation catalyst with bulk ceria, a second bulk metal oxide, and platinum.
  15. Dettling Joseph C. (Jackson NJ) Carr William F. (Monmouth Junction NJ) Heck Ronald M. (Frenchtown NJ) Chen James M. (Rahway NJ), Platinum gold catalyst for removing NOx and NH3 from gas streams.
  16. Matsui Kunio (Yokohama JPX) Fukase Hisahiko (Tokyo JPX) Hirata Atsushi (Hiratsuka JPX) Nomura Akihiro (Yokohama JPX), Pouring device for dual-roll type continuous casting machine.
  17. Kato Akira (Hitachi JPX) Matsuda Shimpei (Hitachi JPX) Uno Shigeo (Hitachi JPX) Imahashi Jinichi (Hitachi JPX) Watanabe Yoshihisa (Inashiki JPX) Imanari Makoto (Inashiki JPX) Nakajima Fumito (Hitachi, Process for catalytically treating exhaust gas containing NOx in the presence of ammonia gas.
  18. Shiraishi Tatsuo (Niihama JA) Fukusen Hiroshi (Niihama JA) Oishi Sachio (Niihama JA) Shimizu Shinkichi (Niihama JA) Nishikawa Hiroyuki (Niihama JA) Wakabayashi Tetsu (Niihama JA), Process for concurrently treating process waste waters and flue gases from ammonia synthesis process plants.
  19. Dannevang Flemming (Copenhagen DKX), Process for decomposing ammonia in an off-gas.
  20. Kobayashi Motonobu (Hyogo JPX) Kinoshita Futoru (Hyogo JPX), Reinforced catalyst for treatment of waste gas.
  21. Logan Anthony D. (Chandler AZ) Montreuil Clifford N. (Dearborn MI), Selective reduction of nitric oxide.
  22. Speronello Barry K. (Belle Mead NJ) Byrne John W. (Edison NJ) Chen James M. (Edison NJ), Staged metal-promoted zeolite catalysts and method for catalytic reduction of nitrogen oxides using the same.
  23. Speronello Barry K. (Belle Mead NJ) Byrne John W. (Edison NJ) Chen James M. (Edison NJ), Staged metal-promoted zeolite catalysts and method for catalytic reduction of nitrogen oxides using the same.
  24. Feeley Jennifer S. ; Deeba Michel ; Farrauto Robert J. ; Dang Dinh, Trimetallic zeolite catalyst and method of NO.sub.x abatement using the same.
  25. Gladden John R. (Metamora IL), Two-stage catalysis of engine exhaust.
  26. Subramanian Somasundaram (Melvindale MI) Kudla Robert J. (Warren MI) Chattha Mohinder S. (Northville MI), Two-stage catalyst system for lean burn engines.
  27. Yavuz Bulent O. ; Voss Kenneth E. ; Deeba Michel ; Adomaitis John R. ; Farrauto Robert J., Zeolite-containing oxidation catalyst and method of use.

이 특허를 인용한 특허 (18)

  1. Fedeyko, Joseph Michael; Doura, Kevin; Weigert, Erich Conlan; Cox, Julian Peter; Chen, Hai-Ying; Andersen, Paul Joseph, Ammonia slip catalyst.
  2. Döring, Andreas, Apparatus for reducing dibenzodioxin emissions and dibenzofuran emissions from transition metal-containing catalyzers.
  3. Fedeyko, Joseph M.; Chen, Hai-Ying; Reining, Arthur J., Catalysts for the reduction of ammonia emission from rich-burn exhaust.
  4. Fedeyko, Joseph M.; Chen, Hai-Ying; Reining, Arthur J., Catalysts for the reduction of ammonia emission from rich-burn exhaust.
  5. Larsson, Mikael, Exhaust system without a DOC having an ASC acting as a DOC in a system with an SCR catalyst before the ASC.
  6. Boorse, R. Samuel; Dieterle, Martin, Four-way diesel catalysts and methods of use.
  7. Boorse, R. Samuel; Caudle, Matthew T.; Dieterle, Martin; Kumar, Sanath V.; Voss, Kenneth E., Integrated SCR and AMOx catalyst systems.
  8. Spurk, Paul; Pfeifer, Marcus; Noack, Hendrik-David, Method and device for the purification of diesel exhaust gases.
  9. Adib, Kaveh; Ogunwumi, Steven Bolaji, Method of controlling Ce:Zr ratio in oxide nanoparticles.
  10. Paulus, Martin; Wanninger, Klaus, Particle reduction with combined SCR and NH3 slip catalyst.
  11. Liu, Xinsheng; Cinar, Esra; Zhang, Chunjuan; Tran, Pascaline Harrison, Porous catalyst washcoats.
  12. Klingmann, Raoul; Roesch, Martin; Lindner, Dieter, Removal of particulates from the exhaust gas of internal combustion engines operated with a predominantly stoichiometric air/fuel mixture.
  13. Drews, Andrew Robert; Kudla, Robert J., System for remediating emissions and method of use.
  14. Drews, Andrew Robert; Kudla, Robert J., System for remediating emissions and method of use.
  15. Cheng, Yisun; Huang, Yinyan; Lambert, Christine Kay, Urea-resistant catalytic units and methods of using the same.
  16. Cheng, Yisun; Huang, Yinyan; Lambert, Christine Kay, Urea-resistant catalytic units and methods of using the same.
  17. Brown, Gavin Michael; Chiffey, Andrew Francis; Phillips, Paul Richard; Swallow, Daniel, Zoned catalysed substrate monolith.
  18. Gilbert, Lee; Newman, Colin; Newman, Andrew; Larsson, Mikael, Zoned exhaust system.

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