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Stabilized and doubly promoted platinum group metal catalysts for emission control and method of making same 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B01J-021/04
  • B01J-023/10
  • B01J-023/58
출원번호 US-0629309 (1984-07-10)
발명자 / 주소
  • Kim Gwan (Olney MD) Ernest Michael V. (Catonsville MD)
출원인 / 주소
  • W. R. Grace & Co. (New York NY 02)
인용정보 피인용 횟수 : 25  인용 특허 : 9

초록

Alumina supported platinum-group metal catalysts exhibit exceptionally good performance and durability when the support is sequentially modified to include support stabilization by lanthana or lanthana-rich rare earth oxides, double promotion by ceria and alkali metal oxides, especially ceria along

대표청구항

A catalyst suitable for use as a catalyst for auto emission control comprising an alumina support with components deposited thereon consisting essentially of lanthana as a stabilizer in an amount of about 1 to 10% by weight expressed as La2O3 which is either in the form of lanthana only or in the fo

이 특허에 인용된 특허 (9)

  1. Ohara Takashi (Nishinomiya JPX) Ono Tetsuji (Amagasaki JPX) Yonehara Kiyoshi (Takatsuki JPX) Yamauchi Shin (Ikeda JPX), Auto exhaust gas catalyst, and process for production thereof.
  2. Summers Jack C. (Rochester MI) Hegedus Louis (Grosse Pointe Woods MI), Catalyst for automotive emission control and method for making same.
  3. Yamauchi ; Shin ; Yonehara ; Kiyoshi ; Horie ; Koshi ; Ono ; Tetsuji ; Oh ara ; Takashi, Catalyst for purifying exhaust and waste gases and method for preparation thereof.
  4. Kinoshita Hiroo (Toyota JPX) Suzuki Yoshihiro (Toyota JPX) Saruhashi Shoji (Shizuoka JPX) Sato Masayasu (Shizuoka JPX), Exhaust gas purifying catalyst.
  5. Barnabe, Jean-Louis, Metal alloy with high catalytic activity.
  6. Hegedus ; Louis ; Summers ; Jack C., Platinum-rhodium catalyst for automotive emission control.
  7. Eskinazi Victoria (Boothwyn PA) Kirner John F. (Media PA) Wilson Charles R. (Swedesboro NJ), Process for preparing a platinum/rhodium catalyst.
  8. Ernest Michael V. (Baltimore MD) Maselli James M. (Columbia MD), Rare earth and platinum group metal catalyst compositions.
  9. Kim Gwan (Columbia MD), Supported platinum group metal catalysts with controlled metal penetration.

이 특허를 인용한 특허 (25)

  1. Kim Gwan (Olney MD), Add-on hydrogen sulfide trap.
  2. Ernest Michael V. (Baltimore MD), Auto exhaust catalyst composition having low H2S emissions and method of making the catalyst.
  3. Rieck Jeffrey S. (Jessup MD) Suarez Wilson (Columbia MD) Kubsh Joseph E. (Silver Spring MD), Catalyst and metal ferrites for reduction of hydrogen sulfide emissions from automobile exhaust.
  4. Sung Shiang, Catalyst composition.
  5. Sung Shiang ; Smaling Rudolf M., Catalyst composition.
  6. Sung Shiang ; Smaling Rudolf M. ; Steger John J., Catalyst composition.
  7. Wu Joseph H. Z. ; Sung Shiang ; Hu Zhicheng ; Steger John J., Catalyst composition containing oxygen storage components.
  8. Wu Joseph H. Z. ; Syed Mukaram K., Catalyst composition containing oxygen storage components.
  9. Ohata Tomohisa (Himeji JPX) Tsuchitani Kazuo (Himeji JPX) Kitaguchi Shinya (Himeji JPX), Catalyst for purifying exhaust gas and method for production thereof.
  10. Matsumoto Shinichi (Aichi JPX) Miyoshi Naoto (Nagoya JPX) Sato Masayasu (Osaka JPX), Catalyst for the purification of exhaust gases.
  11. Bricker Maureen L. (Buffalo Grove IL) Lawson R. Joe (Palatine IL), Catalyst for treatment of exhaust gases from internal combustion engines.
  12. Bricker Maureen L. (Buffalo Grove IL) Lawson R. Joe (Palatine IL), Catalyst for treatment of exhaust gases from internal combustion engines and method of manufacturing the catalyst.
  13. Kim Gwan (Olney MD) Ernest Michael V. (Baltimore MD) Plecha Stanislaw (Baltimore MD), Catalysts for controlling auto exhaust emissions including hydrocarbon, carbon monoxide, nitrogen oxides and hydrogen su.
  14. Chen Shau-Lin F. ; Rabinowitz Harold N. ; Kim Chong, Catalytic material having improved conversion performance.
  15. Hwang, H. Shinn; Dettling, Joseph C.; Galligan, Michael P.; Brown, Ronald J.; Mooney, John J., Catalytic metal plate.
  16. Hu Zhicheng ; Heck Ronald M. ; Rabinowitz Harold N., Close coupled catalyst.
  17. Gandhi Haren S. (Farmington Hills MI) Watkins William L. H. (Toledo OH), Construction, method of making and method of using alumina-supported, precious metal oxidation catalysts.
  18. Kumar,Sanath V., DOC and particulate control system for diesel engines.
  19. Sung Shiang ; Rabinowitz Harold N. ; Smaling Rudolf M., Exhaust gas treatment system.
  20. Summers Jack C. (Tulsa OK), Lanthanum containing catalyst for treating automotive exhaust.
  21. Hu Zhicheng (Edison NJ) Wan Chung-Zong (Somerset NJ) Lui Yiu-Kwan (Parlin NJ) Dettling Joseph C. (Howell NJ), Layered catalyst composite.
  22. Sung Shiang, Layered catalyst composite.
  23. Hu Zhicheng ; Heck Ronald M. ; Rabinowitz Harold N., Method for using a close coupled catalyst.
  24. Kahlert, Bernhard, NO2 slip catalyst.
  25. Gandhi Haren S. (Farmington Hills MI) Watkins William L. H. (Toledo OH), Platinum group alumina-supported, metal oxidation catalysts and method of making same.
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