The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 18, 1992
Filed:
Oct. 23, 1990
Samuel J Tauster, Englishtown, NJ (US);
Harold N Rabinowitz, Upper Montclair, NJ (US);
Joseph C Dettling, Howell, NJ (US);
Engelhard Corporation, Iselin, NJ (US);
Abstract
A catalyst composition includes a zirconia support on which is dispersed a limited amount of ceria to provide a zirconia/dispersed ceria support, and a rhodium catalytic component. The ceria content of the zirconia support does not exceed about fifteen percent by weight based on the combined weight of ceria plus zirconia. The resultant catalyst composition enhances the efficiency of three-way conversion catalyst systems in which it is employed, possibly by promoting the water gas shift reaction and the steam reforming of hydrocarbon. The rhodium on zirconia/dispersed ceria support may be combined with a catalytically effective amount of a platinum catalytic component to provide an effective three-way conversion catalyst.