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특허 상세정보

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내보내기 페이스북 공유 카카오톡 공유

Method of purifying exhaust gases

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01D-053/36   
미국특허분류(USC) 423/2132 ; 423/2137
출원번호 US-0303075 (1989-01-30)
우선권정보 JP-0247958 (1986-10-17)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 57  인용 특허 : 5
초록
▼

The exhaust gases, such as of an internal combustion engine are contacted with a catalyst containing copper in the presence of hydrocarbons in an oxidizing atmosphere, whereby nitrogen oxides are reduced from the exhaust gases. Then, the exhaust gases are preferably contacted with an oxidizing catalyst. The former catalyst contains copper loaded on a porous support formed from alumina, silica, silica-alumina or zeolite or mixture thereof. The support is preferably a monolithic body having a first portion loaded with copper and a second portion loaded wit...

대표
청구항
▼

A method of purifying exhaust gases from an automobile engine supplied with a lean fuel-air mixture having an air-fuel ratio of at least 18:1 and having a higher ratio of air to the fuel and containing a greater amount of oxygen than is required for the complete combustion of any unburned fuel, said exhaust gases containing nitrogen oxides in an oxygen containing oxidizing atmosphere containing also hydrocarbons and CO, comprising the catalytic step of contacting the exhaust gases with a catalyst containing copper in the presence of hydrocarbons in an am...

이 특허에 인용된 특허 (5)

  1. Komatsu Noboru (Toyoake JA) Kamigaito Osami (Nagoya JA) Suzuki Takatoshi (Nagoya JA) Yamamoto Nobuyuki (Nagoya JA) Doi Haruo (Nagoya JA) Sano Kazuya (Nagoya JA) Kandori Toshio (Nagoya JA) Tsuzuki Yuk. Converter for the purification of exhaust gases. USP1977014003976.
  2. Gandhi Haren S. (Farmington Hills MI) Adams Karen M. (Dearborn Heights MI). Method of using a simplified low cost catalyst system. USP1983064389382.
  3. Schlatter ; James C. ; Taylor ; Kathleen C.. Process for improved 3-way emission control. USP1978014071600.
  4. Nakajima Fumito (Hitachi JA) Tekeuchi Masato (Katsuta JA) Matsuda Shimpei (Hitachi JA) Uno Shigeo (Hitachi JA) Mori Toshikatsu (Hitachi JA) Watanabe Yoshihisa (Amimachi JA) Imanari Makoto (Amimachi J. Process for reducing nitrogen oxides to nitrogen. USP1976083976745.
  5. Oshimura Masakazu (Ibaraki JA) Kawakami Akira (Takatsuki JA) Hosoda Hiroaki (Moriguchi JA) Okamoto Osamu (Ibaraki JA) Watanabe Osamu (Suita JA) Fujii Shinichi (Osaka JA) Yamaguchi Satoru (Suita JA) O. Reduction catalysts and processes for reduction of nitrogen oxides. USP1977044018710.

이 특허를 인용한 특허 피인용횟수: 57

  1. Caudle, Matthew T.; Deiterle, Martin; Roth, Stanley A.; Xue, Wen-Mei. Bifunctional catalysts for selective ammonia oxidation. USP2010057722845.
  2. Takada Toshihiro,JPX. Catalyst for purifying exhaust gas. USP1999045894013.
  3. Gandhi, Haren S.; Cavataio, John Vito; Hammerle, Robert Henry; Cheng, Yisun. Catalyst system for the reduction of NOand NHemissions. USP2010017640730.
  4. Gandhi, Haren S.; Cavataio, John Vito; Hammerle, Robert Henry; Cheng, Yisun. Catalyst system for the reduction of NOx and NH3 emissions. USP2012088240132.
  5. Gandhi, Haren Sakarai; Cavataio, John Vito; Hammerle, Robert Henry; Cheng, Yisun. Catalyst system for the reduction of NOx and NH3 emissions. USP2017119810118.
  6. Gandhi, Haren Sakarai; Cavataio, John Vito; Hammerle, Robert Henry; Cheng, Yisun. Catalyst system for the reduction of NOx and NHemissions. USP2010037674743.
  7. Gandhi,Haren S; Cavataio,John Vito; Hammerle,Robert Henry; Cheng,Yisun. Catalyst system for the reduction of NOx and NHemissions. USP2008027332135.
  8. Andreasson,Anders; Chandler,Guy Richard; Goersmann,Claus Friedrich; Warren,James Patrick; Huethwohl,Georg. Catalytic reduction of NO. USP2009037498010.
  9. Andreasson, Anders; Chandler, Guy Richard; Goersman, Claus Fnednch; Warren, James Patrick; Huethwohl, Georg. Catalytic reduction of NOx. USP2014108850802.
  10. Andreasson, Anders; Chandler, Guy Richard; Goersmann, Claus Friedrich; Warren, James Patrick; Huethwohl, Georg. Catalytic reduction of NOx. USP2014098833062.
  11. Andreasson, Anders; Chandler, Guy Richard; Goersmann, Claus Friedrich; Warren, James Patrick; Huethwohl, Georg. Catalytic reduction of NOx. USP2013078480986.
  12. Andreasson, Anders; Chandler, Guy Richard; Goersmann, Claus Friedrich; Warren, James Patrick. Catalytic reduction of NOx . USP2015079073010.
  13. Andreasson, Anders; Chandler, Guy Richard; Goersmann, Claus Friedrich; Warren, James Patrick; Huethwohl, Georg. Catalytic reduction of NOx . USP2012038142747.
  14. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A.. Catalyzed SCR filter and emission treatment method. USP2015059040006.
  15. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A.. Catalyzed SCR filter and emission treatment system. USP2015059039982.
  16. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A.. Catalyzed SCR filter and emission treatment system. USP2015059039983.
  17. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A.. Catalyzed SCR filter and emission treatment system. USP2015099121327.
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  19. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A.. Catalyzed SCR filter and emission treatment system. USP2015059039984.
  20. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A.. Catalyzed SCR filter and emission treatment system. USP20190410258972.
  21. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A.. Catalyzed SCR filter and emission treatment system. USP2016129517456.
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  23. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A.. Catalyzed SCR filter and emission treatment system. USP2016129517455.
  24. Patchett,Joseph Allan; Dettling,Joseph Charles; Przybylski,Elizabeth Alina. Catalyzed SCR filter and emission treatment system. USP2007067229597.
  25. Davidson, James Gary. Clean coal stack. USP2018039919269.
  26. Davidson, James Gary. Cleaning stack gas. USP2017089737849.
  27. Davidson, James Gary. Cleaning stack gas. USP2015069067837.
  28. Davidson, James Gary. Cleaning stack gas. USP2014098821818.
  29. Bull, Ivor; Xue, Wen Mei; Burk, Patrick; Boorse, R. Samuel; Jaglowski, William M.; Koermer, Gerald S.; Moini, Ahmad; Patchett, Joseph A.; Dettling, Joseph C.; Caudle, Matthew T.. Copper CHA zeolite catalysts. USP2009107601662.
  30. Bull, Ivor; Xue, Wen-Mei; Burk, Patrick; Boorse, R. Samuel; Jaglowski, William M.; Koermer, Gerald Stephen; Moini, Ahmad; Patchett, Joseph A.; Dettling, Joseph C.; Caudle, Matthew Tyler. Copper CHA zeolite catalysts. USP2015109162218.
  31. Bull, Ivor; Xue, Wen-Mei; Burk, Patrick; Boorse, R. Samuel; Jaglowski, William M.; Koermer, Gerald Stephen; Moini, Ahmad; Patchett, Joseph A.; Dettling, Joseph C.; Caudle, Matthew Tyler. Copper CHA zeolite catalysts. USP2015099138732.
  32. Bull, Ivor; Xue, Wen-Mei; Burk, Patrick; Boorse, R. Samuel; Jaglowski, William M.; Koermer, Gerald Stephen; Moini, Ahmad; Patchett, Joseph A.; Dettling, Joseph C.; Caudle, Matthew Tyler. Copper CHA zeolite catalysts. USP2017059656254.
  33. Bull, Ivor; Xue, Wen-Mei; Burk, Patrick; Boorse, R. Samuel; Jaglowski, William M.; Koermer, Gerald Stephen; Moini, Ahmad; Patchett, Joseph A.; Dettling, Joseph C.; Caudle, Matthew Tyler. Copper CHA zeolite catalysts. USP2017129839905.
  34. Bull, Ivor; Xue, Wen-Mei; Burk, Patrick; Boorse, R. Samuel; Jaglowski, William M.; Koermer, Gerald Stephen; Moini, Ahmad; Patchett, Joseph A.; Dettling, Joseph C.; Caudle, Matthew Tyler. Copper CHA zeolite catalysts. USP2014058735311.
  35. Kinugasa Yukio,JPX ; Igarashi Kouhei,JPX ; Itou Takaaki,JPX ; Suzuki Naoto,JPX ; Yaegashi Takehisa,JPX ; Tanaka Toshiaki,JPX. Device for purifying exhaust gas of an engine. USP1998075782087.
  36. Wanninger, Klaus; Britz, Peter; Zartenar, Nicolas. Device for the generation of hydrogen. USP2009127632778.
  37. Muramatsu, Gyo; Abe, Akira; Yoshida, Kiyohide; Sumiya, Satoshi; Matsumura, Nobuyuki; Takahashi, Yoshikazu. Exhaust gas cleaner and method of cleaning exhaust gas. USP1994065320999.
  38. Matsumoto, Takeshi; Horiuchi, Makoto; Yoshikawa, Tatsuya. Exhaust gas purifying catalyst and method for purifying exhaust gas. USP2005056893997.
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  47. Dornhaus, Franz; Frantz, Stephanie; Grisstede, Ina. Particulate filter with hydrogen sulphide block function. USP2014048709365.
  48. Beutel, Tilman W.; Bull, Ivor; Moini, Ahmad; Breen, Michael; Dieterle, Martin; Alerasool, Saeed; Slawski, Barbara. Process for preparation of copper containing molecular sieves with the CHA structure, catalysts, systems and methods. USP2012108293199.
  49. Beutel, Tilman W.; Bull, Ivor; Moini, Ahmad; Breen, Michael; Dieterle, Martin; Alerasool, Saeed; Liu, Xinsheng; Lin, Wenyong; Slawski, Barbara; Mueller, Ulrich. Process of direct copper exchange into Na+-form of chabazite molecular sieve, and catalysts, systems and methods. USP2012108293198.
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  51. Boorse, R. Samuel; Dettling, Joseph C.. SCR on low thermal mass filter substrates. USP2012028119088.
  52. Boorse, Samuel; Dettling, Joseph C.. SCR on low thermal mass filter substrates. USP2011087998423.
  53. Bull, Ivor; Koermer, Gerald Stephen; Moini, Ahmad; Unverricht, Signe. Systems utilizing non-zeolitic metal-containing molecular sieves having the CHA crystal structure. USP2013128617474.
  54. Andersen, Paul Joseph; Bailie, Jillian Elaine; Casci, John Leonello; Chen, Hai-Ying; Fedeyko, Joseph Michael; Foo, Rodney Kok Shin; Rajaram, Raj Rao. Transition metal/zeolite SCR catalysts. USP2013128603432.
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  57. Voss, Kenneth; Gottberg, Ingemar; Truesdail, Steve; Vaarkamp, Marius. Zone coated filter, emission treatment systems and methods. USP2014088800268.

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