Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1991-11-04
1993-05-18
Shine, W. J.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502302, 4232135, B01J 2104, B01J 2106, B01J 2310, B01J 2340, B01J 2389
Patent
active
052121429
ABSTRACT:
A catalyst composition includes a carrier on which is disposed a catalytic material which may optionally be provided in discrete first and second coats. The catalyst material contains, e.g., in the first coat, a refractory inorganic oxide first support having a catalytically effective amount of platinum dispersed thereon. The catalyst material also contains, e.g., in the second coat, a stabilized alumina second support having a catalytically effective amount of a second platinum catalyst dispersed thereon, and a third catalyst component which contains a zirconia-stabilized third support, e.g., alumina, having dispersed thereon catalytically effective amounts of rhodium and palladium. A method of treating internal combustion engine exhaust gases with the catalyst composition is also disclosed.
REFERENCES:
patent: 4062810 (1977-12-01), Vogt
patent: 4082837 (1978-04-01), Whelan
patent: 4153579 (1979-05-01), Summers et al.
patent: 4233189 (1980-11-01), Gandhi
patent: 4261862 (1981-04-01), Kinoshita
patent: 4283308 (1981-08-01), Ohara
patent: 4289737 (1981-09-01), Acres
patent: 4294726 (1981-10-01), Bozon
patent: 4299734 (1981-11-01), Fujitani
patent: 4492769 (1985-01-01), Blanchard
patent: 4587231 (1986-05-01), Sawamura
patent: 4675308 (1987-06-01), Wan
patent: 4714694 (1987-12-01), Wan
patent: 4806519 (1989-02-01), Chiba
patent: 4851293 (1989-07-01), Egerton
patent: 4857296 (1989-08-01), Brunelle
patent: 4868148 (1989-09-01), Henk
patent: 4965243 (1990-10-01), Yamada
patent: 4992405 (1991-02-01), Chattha
patent: 5057483 (1991-10-01), Wan
patent: 5063192 (1991-11-01), Murakami et al.
Luccini, et al., "Preparation of Zirconia-Ceria Powders . . . " Int. J. of Mat. & Prod. Tech., vol. 4, No. 2 1989, pp. 167-175.
Engelhard Corporation
Shine W. J.
LandOfFree
High performance thermally stable catalyst does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High performance thermally stable catalyst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High performance thermally stable catalyst will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-804460