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특허 상세정보

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Catalyst for purifying exhaust gases and process for producing the same

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01J-023/10    B01J-023/38   
미국특허분류(USC) 502/304 ; 502/325 ; 502/339 ; 502/349
출원번호 US-0569396 (1995-12-08)
우선권정보 JP-0113789 (1995-04-13)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
인용정보 피인용 횟수 : 39  인용 특허 : 2
초록
▼

A catalyst for purifying exhaust gases includes a porous support; a cerium oxide or a solid solution of a cerium oxide and a zirconium oxide in a state of mutual solid solution, loaded on the porous support; and a noble metal element loaded on the porous support. The cerium oxide or the solid solution has an average particle diameter of from 5 to 100 nm. The cerium oxide is present in the solid solution in an amount of from 0.2 to 4.0 by molar ratio with respect to the zirconium oxide therein. The catalyst can be prepared by: coating and calcinating on a...

대표
청구항

[ What is claimed is:] [1.] A catalyst for purifying exhaust gases, comprising:a porous support;a cerium oxide loaded on said porous support, and having an average secondary particle diameter of from 5 to 100 nm, said average secondary particle diameter being large enough to prevent most of the cerium oxide from entering pores of said porous support, and wherein 50% or more by weight of the particles have an average secondary particle diameter of 100 nm or less; anda noble metal element loaded on said porous support.

이 특허에 인용된 특허 (2)

  1. Shiraishi Eiichi (Himeji JPX) Baba Hideyuki (Himeji JPX) Tsuchitani Kazuo (Himeji JPX) Ohata Tomohisa (Himeji JPX). Catalyst for purifying automotive exhaust gas. USP1993115260249.
  2. Chopin Thierry (Saint Denis FRX) Vilmin Gabriel (Princeton NJ). Zirconium/cerium mixed oxide catalyst/catalyst support compositions having high/stable specific surfaces. USP1997055626826.

이 특허를 인용한 특허 피인용횟수: 39

  1. Stern Jon L. ; Hippely Keith. Admission ticket receptacle bearing information and promotional material. USP2001076267233.
  2. Takeshima, Shinichi; Koyama, Akio. Automobile exhaust gas purification catalyst and method of production of same. USP2012108288310.
  3. Taguchi,Kiyoshi; Ukai,Kunihiro; Wakita,Hidenobu; Fujihara,Seiji. CO removal catalyst, method of producing CO removal catalyst, hydrogen purifying device and fuel cell system. USP2007097265076.
  4. Youn, Young Kee. Catalyst coating liquid manufacturing method and catalyst body thereby. USP2016119486780.
  5. Ohmura, Tetsushi; Suda, Akihiko; Watanabe, Yoshihide. Catalyst for purification of automobile exhaust gas and method for manufacturing the same. USP2012108283281.
  6. Kazuhide Terada JP; Naohiro Satoh JP; Yoshiyuki Nakanishi JP. Catalyst for purification of exhaust gas. USP2002036355590.
  7. Nunan,John G.. Catalyst, an exhaust emission control device and a method of using the same. USP2006057041622.
  8. Vanderspurt, Thomas Henry; Wijzen, Fabienne; Tang, Xia; Leffler, Miriam P.; Willigan, Rhonda R.; Newman, Caroline A.; Radhakrishnan, Rakesh; Feng, Fangxia; Laube, Bruce Leon; Dardas, Zissis; Opalka, Susanne M.; She, Ying. Ceria-based mixed-metal oxide structure, including method of making and use. USP2009117612011.
  9. Vanderspurt,Thomas Henry; Wijzen,Fabienne; Tang,Xia; Leffler,Miriam P.; Willigan,Rhonda R.; Newman,Caroline A.; Radhakrishnan,Rakesh; Feng,Fangxia; Laube,Bruce Leon; Dardas,Zissis; Opalka,Susanne M.;. Ceria-based mixed-metal oxide structure, including method of making and use. USP2007017166263.
  10. Suda,Eisaku; Pacaud,Bernard. Cerium based composite oxide, sintered product thereof and method for preparation thereof. USP2006107119041.
  11. Kuno, Oji. Cerium-zirconium composite metal oxide. USP201403RE44802.
  12. Kuno,Oji. Cerium-zirconium composite metal oxide. USP2008067384888.
  13. Wakita, Takahiro; Kohara, Akira; Kanno, Yasuharu; Omoto, Hiroaki. Cerium/zirconium-base composite oxide, method for producing the same, oxygen storage/release component using said cerium-zirconium-base composite oxide, exhaust gas purification catalyst, and exhaust gas purification method using the same. USP2012058187995.
  14. Wakita, Takahiro; Kohara, Akira; Kanno, Yasuharu; Omoto, Hiroaki. Cerium/zirconium-base composite oxide, method for producing the same, oxygen storage/release component using said cerium-zirconium-base composite oxide, exhaust gas purification catalyst, and exhaust gas purification method using the same. USP2011017871956.
  15. Yamazaki, Masatoshi; Anno, Yuichi; Shinoda, Kiyoshi; Yashima, Isamu. Co-catalyst for purifying exhaust gas. USP2004126831036.
  16. Maunula, Teuvo; Kärkkäinen, Marja; Juvonen, Pasi; Matilainen, Pekka. Coating for particulate filters. USP2017099765661.
  17. Suzuki Tadashi,JPX ; Sobukawa Hideo,JPX. Composite oxide, composite oxide carrier and catalyst. USP2001106306794.
  18. Fujimura, Takehiro; Kanno, Yasuharu. Denitration catalyst composition and method of denitration using same. USP2014088796171.
  19. Honda, Tomohiro; Urai, Tomoaki; Fujimoto, Ryota; Miyoshi, Seiji; Yamada, Hiroshi; Iwakuni, Hideharu; Harada, Koichiro; Minoshima, Koji; Takami, Akihide. Exhaust gas purification catalyst. USP2010047691778.
  20. Nagao, Yuki; Iwakura, Hironori; Nakahara, Yunosuke; Machida, Masato. Exhaust gas purification catalyst composition and exhaust gas purification catalyst. USP2017069682365.
  21. Miyoshi, Seiji; Yamada, Hiroshi; Minoshima, Koji; Takami, Akihide; Iwakuni, Hideharu. Exhaust gas purifying catalyst. USP2009107608561.
  22. Uenishi, Mari; Tan, Isao; Tanaka, Hirohisa. Exhaust gas purifying catalyst. USP2005036864214.
  23. Uenishi,Mari; Tan,Isao; Tanaka,Hirohisa. Exhaust gas purifying catalyst. USP2006077081430.
  24. Urai, Tomoaki; Honda, Tomohiro; Kurata, Katsuaki; Iwakuni, Hideharu; Takami, Akihide. Exhaust gas purifying catalyst. USP2010047696127.
  25. Kanazawa, Takaaki; Haga, Shunsuke; Naito, Isao; Chiba, Akiya; Abe, Motoya. Exhaust gas purifying catalyst and method for producing the same. USP20190110189011.
  26. Takeshima, Shinichi. Exhaust gas purifying catalyst, and method for producing the same. USP2011017867943.
  27. Matsueda,Satoshi; Kimura,Mareo; Miyoshi,Naoto. Exhaust gas-purifying catalyst and method of manufacturing the same. USP2009037498288.
  28. Dardas, Zissis; Vanderspurt, Thomas Henry; Gupta, Nikunj; Ghosh, Shubhro; She, Ying. High performance fuel processing system for fuel cell power plant. USP2005086932848.
  29. Prin,Marie; Hervieu,Pascal. Metal oxide-coated SiC foam carriers for catalysts, and catalytic systems therefor. USP2007017160838.
  30. Haga, Fumihiro; Kaneko, Hiroaki. Methanol reforming catalyst. USP2005026849573.
  31. Kuno, Oji. Method for preparing metal oxide particles and an exhaust gas purifying catalyst. USP201408RE45083.
  32. Kuno,Oji. Method for preparing metal oxide particles and an exhaust gas purifying catalyst. USP2008017314846.
  33. Magno, Scott; Wang, Ruiping; Derouane, Eric. Mixed oxide solid solutions. USP2003026521566.
  34. Hideo Sobukawa JP; Toshitaka Tanabe JP; Kenichirou Suzuki JP; Megumi Sasaki JP; Hiroaki Hayashi JP; Akira Morikawa JP; Masahiro Sugiura JP. Ordinary-temperature purifying catalyst. USP2002126492298.
  35. Mussmann, Lothar; Van Yperen, Renee; Lindner, Dieter; Kreuzer, Thomas; Lox, Egbert. Oxygen storing material with high thermal stability and a process for preparation and use thereof. USP2003066576207.
  36. Chintawar, Prashant S.; Thompson, Craig; Hagan, Mark R.. Process for converting carbon monoxide and water in a reformate stream. USP2003026524550.
  37. Salem, George Fredrick; Zhu, Guang; Hagemeyer, Alfred Gerhard; Dias, Eric L.. Reduction catalysts. USP2016109468908.
  38. Li, Shiyao; Li, Jun (John); Hurley, Ronald G.. Three-way rare earth oxide catalyst. USP2003056569392.
  39. Umemoto Yoshichika,JPX ; Nakatani Toshio,JPX ; Ouchi Kimio,JPX. Zirconium- and cerium-based mixed oxide and method of production thereof. USP2001076255242.

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