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Process for reducing nitrogen oxides 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B01J-008/02
출원번호 US-0326219 (1994-10-20)
우선권정보 JP-0173219 (1994-06-30)
발명자 / 주소
  • Yokota Koji (Aichi JPX) Fukui Masayuki (Aichi JPX) Tanaka Toshiyuki (Aichi JPX)
출원인 / 주소
  • Kabushiki Kaisha Toyota Chuo Kenkyusho (Aichi-ken JPX 03)
인용정보 피인용 횟수 : 34  인용 특허 : 0

초록

A process for efficiently reducing nitrogen oxides in exhaust gases including excess oxygen. The process includes intermittently introducing a reducing agent, such as hydrogen and carbon monoxide, for reducing nitrogen oxides to a reducing catalyst, such as platinum, disposed in an exhaust gas passa

대표청구항

A process for reducing nitrogen oxides in exhaust gases including excess oxygen, the amount of which is larger than a stoichiometric amount of oxygen required to oxidize components to be oxidized in said exhaust gases, comprising the steps of: i) bringing said exhaust gases into contact with a catal

이 특허를 인용한 특허 (34)

  1. Eiteneer, Boris Nickolaevich; Marquez, Antonio; Moyeda, David Kelly, Apparatus for a nitrogen purge system.
  2. Kurokawa Takahiro,JPX ; Takami Akihide,JPX ; Iwakuni Hideharu,JPX ; Kyogoku Makoto,JPX ; Okamoto Kenji,JPX ; Yamada Hiroshi,JPX, Catalyst for purifying exhaust gas.
  3. Sobolevskiy, Anatoly; Rossin, Joseph A.; Knapke, Michael J., Catalytic process for control of NOemissions using hydrogen.
  4. Murphy Oliver J. ; Andrews Craig C., Catalytic reduction of emissions from internal combustion engines.
  5. Murphy,Oliver J.; Andrews,Craig C., Catalytic reduction of emissions from internal combustion engines.
  6. Michel Deeba ; Uwe Dahle DE; Stefan Brandt DE; John K. Hochmuth, Catalytic trap with potassium component and method of using the same.
  7. Hanaoka,Hiroshi; Kuroda,Osamu; Doi,Ryouta; Iizuka,Hidehiro; Ogawa,Toshio; Yamashita,Hisao; Azuhata,Shigeru; Kitahara,Yuichi; Hiratsuka,Toshifumi; Okude,Kojiro; Shinotsuka,Norihiro; Manaka,Toshio, Exhaust gas purification apparatus of internal combustion engine and catalyst for purifying exhaust gas of internal combustion engine.
  8. Duvinage, Frank; Goerigk, Christian; Nolte, Arno; Paule, Markus; Sander, Henning, Exhaust gas purification system.
  9. Duvinage,Frank; Goerigk,Christian; Nolte,Arno; Paule,Markus; Sander,Henning, Exhaust gas purification unit with reducing agent supply.
  10. Tanada, Hiroshi; Nakayama, Osamu; Tashiro, Keisuke; Iwachido, Kinichi; Watanabe, Tetsuya; Koga, Kazuo, Exhaust gas purifying catalyst.
  11. Onodera, Hitoshi; Takaya, Masahiro, Exhaust gas purifying system.
  12. Yamamoto, Shinji; Kanesaka, Hiroyuki; Onodera, Hitoshi; Hanaki, Yasunari; Suga, Katsuo; Morita, Hiroshi; Hiramoto, Yoshiaki; Kaneko, Hiroaki, Exhaust gas purifying system.
  13. LaBarge,William J.; Kupe,Joachim; Zizelman,James; Botti,Jean J., Exhaust system and method of thermal management.
  14. LaBarge, William J.; Price, Kenneth; Bonadies, Joseph V.; Kupe, Joachim, Exhaust treatment devices.
  15. Bartley,Gordon James Johnston; Sharp,Christopher Alan, Hydrogen selective catalytic reduction for NO.
  16. Jennifer S. Feeley ; Robert J. Farrauto ; Michel Deeba, Method and apparatus for NOx abatement in lean gaseous streams.
  17. Kupe, Joachim; Zizelman, James; Botti, Jean J., Method and system for regenerating NOx adsorbers and/or particulate filters.
  18. Francesco Cino Matacotta IT; Gianluca Calestani IT, Method for removing harmful components from a gaseous mixture.
  19. Ueda Atsushi,JPX ; Kobayashi Tetsuhiko,JPX ; Takenaka Hiroyasu,JPX, Method for removing nitrogen oxides.
  20. Molinier, Michel, Method for sulfur protection of NOx adsorber.
  21. Kharas, Karl C. C., Method of NOx abatement in high temperature lean NOx catalyst systems.
  22. Deeba Michel ; Feeley Jennifer S. ; Farrauto Robert J., Method of abating NO.sub.x and a catalytic material therefor.
  23. Hideharu Iwakuni JP; Makoto Kyogoku JP; Hiroshi Yamada JP; Akihide Takami JP, Method of producing exhaust gas purifying catalyst and catalyst produced thereby.
  24. Bartley,Gordon James Johnston; Sharp,Christopher Alan, NOreduction system for diesel engines, using hydrogen selective catalytic reduction.
  25. Bartley,Gordon James Johnston; Sharp,Christopher Alan, NOreduction system for diesel engines, using hydrogen selective catalytic reduction.
  26. Hepburn Jeffrey Scott ; Denari John ; Watkins William Lewis Henderson, Process for manufacturing nox traps with improved sulfur tolerance.
  27. Sobolevskiy, Anatoly; Rossin, Joseph A.; Knapke, Michael J., Process of activation of a palladium catalyst system.
  28. Sobolevskiy, Anatoly; Rossin, Joseph A.; Knapke, Michael J., Selective catalytic reduction system and process for treating NOx emissions using a palladium and rhodium or ruthenium catalyst.
  29. Sobolevskiy, Anatoly; Rossin, Joseph A.; Knapke, Michael J., Selective catalytic reduction system and process for treating NOx emissions using a zinc or titanium promoted palladium-zirconium catalyst.
  30. Sobolevskiy, Anatoly; Rossin, Joseph A., Selective catalytic reduction system and process using a pre-sulfated zirconia binder.
  31. Odermatt, Peter; Spiegel, Andreas; Dittrich, Jurgen, Sensor for detecting the instantaneous concentrations of a plurality of gas constituents in a gas.
  32. Hepburn Jeffrey S. ; Watkins William L. H., Sulfur tolerant Pt/lithium NOx traps.
  33. Sobolevskiy, Anatoly; Rossin, Joseph A., System and method for selective catalytic reduction of nitrogen oxides in combustion exhaust gases.
  34. Simpkins,Haskell; Bonadies,Joseph V.; Goulette,David A.; Price,Kenneth S.; Kirwan,John E., System and method of heating an exhaust treatment device.
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