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특허 상세정보

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Urea-resistant catalytic units and methods of using the same

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01J-023/00    B01J-021/00    B01J-020/00    B01J-029/00    B01J-037/00   
미국특허분류(USC) 502/259; 502/064; 502/065; 502/066; 502/073; 502/074; 502/260; 502/263; 502/302; 502/305; 502/308; 502/309; 502/311; 502/314; 502/315; 502/321; 502/322; 502/323; 502/326; 502/327; 502/332; 502/335; 502/337; 502/349; 502/350; 502/351; 502/353; 502/354; 502/355; 502/415; 502/439
출원번호 US-0489703 (2009-06-23)
등록번호 US-8207084 (2012-06-26)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Porcari, Damian
인용정보 피인용 횟수 : 1  인용 특허 : 52
초록
▼

According to at least one aspect of the present invention, a urea-resistant catalytic unit is provided. In at least one embodiment, the catalytic unit includes a catalyst having a catalyst surface, and a urea-resistant coating in contact with at least a portion of the catalyst surface, wherein the urea-resistant coating effectively reduces urea-induced deactivation of the catalyst. In at least another embodiment, the urea-resistant coating includes at least one oxide from the group consisting of titanium oxide, tungsten oxide, zirconium oxide, molybdenum...

대표
청구항
▼

1. A urea-resistant catalytic unit comprising: a catalyst formed as at least one discrete particle or as a sheet;a substrate supporting the catalyst; anda urea-resistant coating contacting at least a portion of an external surface of the catalyst, the catalyst being positioned between the substrate and the urea-resistant coating, wherein the urea-resistant coating effectively reduces urea-induced deactivation of the catalyst. 2. The urea-resistant catalytic unit of claim 1, wherein the catalyst includes a zeolite-based selective catalytic reduction (SCR)...

이 특허에 인용된 특허 (52)

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  2. Golden, Stephen J.; Iretskaya, Svetlana. Ammonia SCR catalyst and method of using the catalyst. USP2009057527776.
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  6. Ikeda,Masakazu; Waku,Toshio; Aoki,Nobuo. Catalyst for Fischer-Tropsch synthesis and process for producing hydrocarbons. USP2009037510994.
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  11. Hums Erich,DEX ; Spitznagel Gunther,DEX ; Huttenhofer Klaus,DEX ; Fischer Peter,DEX ; Neufert Ronald,DEX. Catalyst for reducing the nitrogen oxide concentration in a flowing medium and method for producing the catalyst. USP2000046054408.
  12. Gandhi, Haren S.; Cavataio, John Vito; Hammerle, Robert Henry; Cheng, Yisun. Catalyst system for the reduction of NOand NHemissions. USP2010017640730.
  13. Gandhi, Haren Sakarai; Cavataio, John Vito; Hammerle, Robert Henry; Cheng, Yisun. Catalyst system for the reduction of NOx and NHemissions. USP2010037674743.
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  18. Patchett, Joseph A.; Dettling, Joseph C.; Przybylski, Elizabeth A.. Catalyzed SCR filter and emission treatment system. USP2011037902107.
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  21. Yang, Yuanyi; Li, Dongfeng; Dai, Wei; Chen, Shuo; Wang, Guoqing; Liao, Lihua; Cheng, Jianmin; Guo, Yanlai; Peng, Hui. Composite for catalytic distillation and its preparation. USP2010017642388.
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  23. 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.
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이 특허를 인용한 특허 피인용횟수: 1

  1. Harada, Takahiro; Narita, Keiichi; Tanaka, Michio; Kunioku, Hironobu; Nakashima, Ryota. Exhaust gas purification catalyst. USP2017129849443.

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