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특허 상세정보

Catalytic reduction of NO

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01D-053/56   
미국특허분류(USC) 423/239.1
출원번호 US-0886778 (2004-07-08)
등록번호 US-7498010 (2009-03-03)
우선권정보 GB-9802504(1998-02-06)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 15  인용 특허 : 52
초록

A system for NOx reduction in combustion gases, especially from diesel engines, incorporates an oxidation catalyst to convert at least a portion of NO to NO2, a particulate filter, a source of reductant such as NH3 and an SCR catalyst. Considerable improvements in NOx conversion are observed.

대표
청구항

What is claimed: 1. A method of reducing pollutants, including particulates and NOx, in a gas stream, comprising passing said gas stream over an oxidation catalyst under conditions effective to convert a portion of NO in the gas stream to NO2 to produce a gas mixture comprising a mixture of NO and NO2, wherein the gas mixture has an enhanced NO2 content relative to the gas stream entering the oxidation catalyst, removing at least a portion of said particulates in a particulate trap located downstream of the oxidation catalyst, reacting trapped particula...

이 특허에 인용된 특허 (52)

  1. Krishnamurthy Sowmithri (Cherry Hill NJ) McWilliams John P. (Woodbury NJ) Pappal David A. (Sewell NJ) Sigal Catherine T. (Pennington NJ) Kiliany ; Jr. Thomas R. (Baytown TX). Abatement of NOx in exhaust gases. USP1988104778665.
  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. USP1992065120695.
  3. Gerdes William H. (Hudson OH) Lim Charles (Stow OH) Szymanski Thomas (Stow OH). Catalyst for the reduction of oxides of nitrogen. USP1988044735927.
  4. Tadokoro Tomoo (Hiroshima JPX) Honda Yasuo (Hiroshima JPX). Catalytic converter for purifying gases. USP1981074278639.
  5. Neumann ; Joachim. Catalytic device for the catalytic purification of exhaust gases. USP1978064093423.
  6. Lynch John H. (St. Annes-on-Sea GB). Containers for catalysts for exhaust emission control. USP1979074163042.
  7. Stiglic Paul M. (Torrance CA) Gabelman Brian C. (Los Angeles CA) Hardy James A. (Playa Del Rey CA). Control system for diesel particulate trap regeneration system. USP1991095050376.
  8. Huthwohl, Georg; Maurer, Bernd. Converter for a device for introducing ammonia into exhaust gas flow of internal combustion engine and method for filling converter. USP2003096613292.
  9. Araki Yasushi,JPX. Device for purifying the exhaust gas of a diesel engine. USP1998015711149.
  10. Ceynow Kenneth P. (Oak Lawn IL) Jass Richard E. (Frankfort IL) Shi Robert X. (Chicago IL). Diesel engine EGR system with exhaust gas conditioning. USP1995085440880.
  11. Twigg Martyn Vincent,GBX ; Wilkins Anthony John Joseph,GBX ; Will Nigel Simon,GBX. Emission control. USP2001096294141.
  12. Ronny Allansson SE; Klas Anders Andreasson SE; Nils Myers SE; Ari Uusimaki SE; James Patrick Warren GB. Emissions control. USP2002086427436.
  13. Yano Toru (Saitama JPX) Ikebe Hidehito (Saitama JPX) Terada Kazuhide (Saitama JPX). Exhaust emission control system in internal combustion engine. USP1996105564283.
  14. Daudel Helmut (Schorndorf DEX) Marquardt Klaus-Jrgen (Remshalden DEX) Grtner Uwe (Weinstadt DEX). Exhaust gas aftertreatment device for internal combustion engines. USP1994125369956.
  15. Irite Naoko (Kumagaya JPX) Abe Akira (Kumagaya JPX) Yoshida Kiyohide (Kumagaya JPX). Exhaust gas cleaner and method for cleaning exhaust gas. USP1997095670443.
  16. Weisweiler Werner,DEX ; Huthwohl Georg,DEX ; Maurer Bernd,DEX. Exhaust gas purification system for denoxing exhaust gases from combustion units. USP2001106301879.
  17. Paas Norbert. Exhaust gas recirculation in internal combustion engines. USP1998075785030.
  18. Khair Magdi K. ; Di Silverio William D.. Exhaust gas recirculation system for simultaneously reducing NO.sub.x and particulate matter. USP1998095806308.
  19. Takeshima Shinichi (Susono JPX) Nakanishi Kiyoshi (Susono JPX) Iguchi Satoshi (Mishima JPX) Tanaka Toshiaki (Numazu JPX) Araki Yasushi (Susono JPX) Hirota Shinya (Susono JPX) Kobashi Kiyoshi (Mishima. Exhaust purification device of internal combustion engine. USP1995125473887.
  20. Kakwani, Ramesh M.; Voss, Kenneth C.; Patchett, Joseph A.; Grimston, Karl R.. Exhaust system for enhanced reduction of nitrogen oxides and particulates from diesel engines. USP2004126826906.
  21. Kakwani,Ramesh M.; Voss,Kenneth C.; Patchett,Joseph A.; Grimston,Karl R.. Exhaust system for enhanced reduction of nitrogen oxides and particulates from diesel engines. USP2006127143578.
  22. Masatoshi Shimoda JP; Toshiaki Kakegawa JP; Haruyuki Yokota JP. Internal combustion engine. USP2002016338245.
  23. Sugasawa Fukashi (Yokohama JPX) Iizuka Haruhiko (Yokosuka JPX 4). Internal combustion engine. USP1980114231338.
  24. Ito Takekazu,JPX ; Sasaki Shizuo,JPX ; Yoshizaki Kouji,JPX ; Gotoh Masato,JPX ; Murata Hiroki,JPX. Internal combustion engine and method for controlling an internal combustion engine. USP2001066240721.
  25. Vollenweider Jakob (Winterthur CHX). Large diesel engine. USP1993055209062.
  26. Bell Ronald D. (Austin TX). Low NOx cogeneration process and system. USP1993075224334.
  27. Gray ; Jr. Charles L.. Low emission, diesel-cycle engine. USP2001106301888.
  28. Tsukamoto Hiroaki (Saitama JPX). Means for supplying a secondary air in an internal combustion engine which is provided with a turbo charger. USP1985084534173.
  29. Schmelz Helmut (Prien DEX). Method and apparatus for controlled introduction of a reducing agent into a nitrogen oxide-containing exhaust gas. USP1997055628186.
  30. Murachi Mikio,JPX ; Okawara Seiji,JPX ; Kojima Koichi,JPX ; Kondo Takuya,JPX. Method for purifying exhaust gas of a diesel engine. USP1998055746989.
  31. Byrne John W. (Edison NJ). Method for reduction of nitrogen oxides with ammonia using promoted zeolite catalysts. USP1990104961917.
  32. Baacke Michael (Hanau DEX) Beand Reinhold (Hanau DEX) Engler Bernd (Hanau DEX) Kiss Akos (Alzenau/Wasserlos DEX) Kleine-Mllhoff Peter (Waldbuettelbrunn DEX) Kleinschmit Peter (Hanau DEX) Koberstein E. Method for the reduction of nitrogen oxides from waste gases using a zeolite. USP1992055116586.
  33. Yoshida Kiyohide (Kumagaya JPX) Muramatsu Gyo (Kumagaya JPX) Abe Akira (Kumagaya JPX) Miyadera Tatsuo (Tsukuba JPX). Method of cleaning an exhaust gas and exhaust gas cleaner therefor. USP1996075534237.
  34. Fujitani Yoshiyasu (Aichi JPX) Muraki Hideaki (Aichi JPX) Kondoh Shiroh (Aichi JPX) Fukui Masayuki (Aichi JPX). Method of purifying exhaust gases. USP1991085041270.
  35. Robinson John W. ; Lebold Alan R. ; Travers Mark. Mounting mat for fragile structures such as catalytic converters. USP1998095811063.
  36. McWilliams John P. (Woodbury NJ) Shihabi David S. (Pennington NJ) Socha Richard F. (Newtown PA) Timken Hye K. C. (Woodbury NJ). NOx abatement process. USP1995055417949.
  37. Yang Ralph T. (Ann Arbor MI) Chen Ning (Ann Arbor MI). Nitrogen oxide decomposition. USP1996065523068.
  38. Vogtlin George E. ; Merritt Bernard T. ; Hsiao Mark C. ; Wallman P. Henrik ; Penetrante Bernardino M.. Plasma-assisted catalytic reduction system. USP1998015711147.
  39. Sch?fer-Sindlinger, Adolf; Pfeifer, Marcus; Spurk, Paul; Demel, Yvonne; Kreuzer, Thomas; Lox, Egbert. Process and catalyst for reducing nitrogen oxides. USP2005016843971.
  40. Matsuda Shinpei (Hitachi JPX) Kato Akira (Hitachi JPX) Uno Shigeo (Hitachi JPX) Sakuta Youichi (Katsuta JPX) Nakajima Fumito (Hitachi JPX). Process for reducing an eliminating nitrogen oxides in an exhaust gas. USP1982094351811.
  41. Sch채fer Sindlinger,Adolf; Pfeifer,Marcus; Spurk,Paul; Demel,Yvonne; Kreuzer,Thomas; Lox,Egbert. Process for reducing nitrogen oxides. USP2006027005116.
  42. Werner Weisweiler DE. Process for reducing nitrogen oxides on SCR catalyst. USP2002066399034.
  43. Alcorn William R. (Cleveland Hts. OH). Process for removal of NOx from fluid streams. USP1990034912776.
  44. Horaguchi Mitsuhiro (Yokohama JPX) Tomizawa Shigechika (Yokohama JPX) Kaihara Yuji (Yokohama JPX). Process for the systematic treatment of exhaust gases. USP1990044919905.
  45. Huthwohl, Georg; Maurer, Bernd; Noack, Frank. Reducing agent dosing device. USP2005016845611.
  46. Yokokura Tsunetoshi (Hiroshima JPX) Tsuchida Tsuyoshi (Iwakuni JPX). Secondary air supply system for automobile engine having superchager. USP1983094406126.
  47. Audeh Costandi A. (Princeton NJ) Sharma Sanjay B. (Langhorne PA) Shihabi David S. (Pennington NJ). Selective catalytic reduction of nitrogen oxides using a ferrocene impregnated zeolite catalyst. USP1996015482692.
  48. Farnos Maria D. (Wilmington DE) McWilliams John P. (Woodbury NJ) Sharma Sanjay B. (Langhorne PA) Shihabi David S. (Pennington NJ) Stevenson Scott A. (Langhorne PA) Vartuli James C. (West Chester PA). Selective catalytic reduction of nitrogen oxides using an iron impregnated zeolite catalyst. USP1995095451387.
  49. Koschlig Hans-Joachim (Bochum-Dahlhausen DEX) Hutter Frank (Wrzburg DEX) Schmidt Helmut (Zellingen DEX). Supported catalyst and process for its production for the reduction of nitrogen oxides. USP1990044916106.
  50. Cooper Barry J. (Radnor PA) Jung Hyun J. (Wayne PA) Thoss James E. (West Chester PA). Treatment of diesel exhaust gases. USP1990024902487.
  51. Woollenweber William E. ; Halimi Edward M.. Turbocharging systems for internal combustion engines. USP2000056062026.
  52. Yavuz Bulent O. ; Voss Kenneth E. ; Deeba Michel ; Adomaitis John R. ; Farrauto Robert J.. Zeolite-containing oxidation catalyst and method of use. USP2001086274107.

이 특허를 인용한 특허 피인용횟수: 15

  1. Chapman, David M.. Capture of volatilized vanadium and tungsten compounds in a selective catalytic reduction system. USP2013078481453.
  2. Chapman, David M.. Capture of volatilized vanadium and tungsten compounds in a selective catalytic reduction system. USP2013078481452.
  3. Brown, Gavin Michael; Chiffey, Andrew Francis; Marvell, David. Catalysed soot filter. USP2015018940259.
  4. Frantz, Stephanie; Goebel, Ulrich; Dornhaus, Franz; Schiffer, Michael. Catalytically active particulate filter and use thereof. USP2015018932546.
  5. Pfeifer, Marcus; Schiffer, Michael; Dornhaus, Franz; Basso, Stephan; Schuetze, Frank-Walter. Coated diesel particle filter. USP2016059346019.
  6. Dornhaus, Franz; Frantz, Stéphanie; Jeske, Gerald. Diesel particle filter with improved back pressure characteristics. USP2015069051857.
  7. Nagoshi, Masahiro; Tetsuno, Masayuki; Mizuta, Yoshio; Fujii, Kohei; Yamada, Hiroshi; Harada, Koichiro; Sato, Yoshiyuki; Takami, Akihide. Exhaust gas purification system and exhaust gas purification method. USP2017079702286.
  8. Delvecchio, Kerry A.; Kramer, Delbert; Kruiswyk, Richard W.; Robel, Wade J.; Anees, Hafiz. Exhaust system implementing selective catalyst flow control. USP2013128607553.
  9. Zhang, Wenzhong; Taubert, Todd R.; Ricke, Timothy L.; Imes, Julian A.. Low temperature diesel particulate matter reduction system. USP2014088808418.
  10. Zhang, Wenzhong; Taubert, Todd R.; Ricke, Timothy L.; Imes, Julian A.. Low temperature diesel particulate matter reduction system. USP2011017862640.
  11. Spurk, Paul; Pfeifer, Marcus; Noack, Hendrik-David. Method and device for the purification of diesel exhaust gases. USP20180610001053.
  12. Schuetze, Frank-Walter; Pfeifer, Marcus; Schiffer, Michael; Symalla, Martin; Hengst, Christoph. Method for preventing the contamination by platinum of an SCR catalyst. USP2016119492787.
  13. Pfeifer, Marcus; Basso, Stephan; Dornhaus, Franz. Reduction-catalyst-coated diesel particle filter having improved characteristics. USP2016059347354.
  14. Kraemer, Gilbert Otto; Boardman, Gregory Allen. System and method for controlling and reducing NOx emissions. USP2016049308496.
  15. Southward, Barry W. L.; Nunan, John G.. ZrOx, Ce-ZrOx, Ce-Zr-REOx as host matrices for redox active cations for low temperature, hydrothermally durable and poison resistant SCR catalysts. USP2013098529853.