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특허 상세정보

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Method of the purification of the exhaust gas from a lean-burn engine using a catalyst

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01J-008/00    C01B-021/00    C01B-023/00    C01B-025/00    C01B-031/00   
미국특허분류(USC) 423/239.1; 423/213.5
출원번호 US-0417887 (1999-10-14)
우선권정보 JP-0293852 (1998-10-15)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Selitto, Behr & Kim
인용정보 피인용 횟수 : 15  인용 특허 : 54
초록

A catalyst for purifying the exhaust gas from a lean-burn engine, which includes a refractory inorganic oxide carrying platinum thereon, a cerium-containing oxide carrying palladium thereon, and an alkali metal compound and/or an alkaline earth metal compound, and a method for the production of the catalyst.

대표
청구항
▼

1. A method for the purification of the exhaust gas from a lean-burn engine run at an air/fuel ratio of not less than 15 using a catalyst, bringing the exhaust gas into contact with the catalyst comprising, as components, (i) a refractory inorganic oxide having platinum carried partly or wholly thereon, (ii) a cerium-containing oxide having palladium carried partly or wholly thereon, and (iii) at least one member selected from the group consisting of an alkali metal compound and an alkaline earth metal compound, wherein substantially no other noble...

이 특허에 인용된 특허 (54)

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  2. Noda, Naomi; Suzuki, Junichi. Catalyst for purification of exhaust gas. USP2004116815393.
  3. Mao, Fuhe; Li, Cheng G.; Ziebarth, Robin. Catalyzed diesel soot filter and process. USP2010057713909.
  4. Twigg, Martyn Vincent; Phillips, Paul Richard. Compression ignition engine and exhaust system therefor. USP2011088006485.
  5. Uenishi,Mari; Tan,Isao; Tanaka,Hirohisa. Exhaust gas purifying catalyst. USP2006077081430.
  6. Yoshikawa, Tatsuya. Exhaust gas purifying catalyst. USP2004096797668.
  7. Dotzel, Ralf; Leppelt, Rainer; Münch, Jörg Werner; Schedel, Hubert. Extruded SCR filter. USP2014088815190.
  8. Dotzel, Ralf; Leppelt, Rainer; Münch, Jörg Werner; Schedel, Hubert. Extruded SCR filter. USP2013128609047.
  9. Collier, Jillian Elaine; Dotzel, Ralf; Laroze, Sylvie Cécile; Leppelt, Rainer; Millington, Paul James; Münch, Jörg Werner; Rajaram, Raj Rao; Schedel, Hubert. Filter comprising combined soot oxidation and NH3-SCR catalyst. USP2016039283519.
  10. Dotzel, Ralf; Leppelt, Rainer; Mountstevens, Elizabeth Hazel; Münch, Jörg Werner; Phillips, Paul Richard; Schedel, Hubert; Swallow, Daniel. NOx absorber catalysts. USP2014028641993.
  11. Ikeda, Masanori; Kato, Naohiro. Oxidation catalyst and exhaust-gas purification system using the same. USP2011108034311.
  12. Yoshida,Kohei; Takeshima,Shinichi. Particulate matter-oxidizing material and oxidizing catalyst. USP2008077393808.
  13. Twigg,Martyn Vincent; Phillips,Paul Richard. Process for treating compression ignition engine exhaust gas. USP2009027485270.
  14. Andersen, Paul Joseph; Dotzel, Ralf; Koo, Kwangmo; Leppelt, Rainer; Münch, Jörg Werner; Rieck, Jeffery Scott; Schedel, Hubert; Winterborn, Duncan John William; Ballinger, Todd Howard; Cox, Julian Peter. Three way catalyst comprising extruded solid body. USP2013128603423.
  15. Andersen, Paul Joseph; Dotzel, Ralf; Koo, Kwangmo; Leppelt, Rainer; Münch, Jörg Werner; Rieck, Jeffery Scott; Schedel, Hubert; Winterborn, Duncan John William; Ballinger, Todd Howard; Cox, Julian Peter. Three way catalyst comprising extruded solid body. USP2015059040003.

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