Chrome/platinum/palladium catalyst for hydrocarbon emission control
US5141912A · kind A · utility
8Cited by
18References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1990 |
| Grant date | Aug 25, 1992 |
| Priority date | — |
| Expiry date | Sep 18, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J35/651
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst for control of hydrocarbon emission with improved resistance to phosphorus, sulfur, halogen and silicon poisoning comprising a refractory oxide support impregnated with 0.5 to 20% by weight chromium oxide or manganese oxide or a mixture thereof, and a catalytically effective amount of one or more platinum group metals. The preferred refractory oxide support is alumina. The preferred platinum group metals include Pt, Pd, Ir and Rh.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.