Catalyst for cleaning exhaust gas
US5108977A · kind A · utility
15Cited by
3References
6Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Dec 30, 1988 |
| Grant date | Apr 28, 1992 |
| Priority date | — |
| Expiry date | Dec 30, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An exhaust gas cleaner comprising a catalyst carrier on a heat-resistant filter, the catalyst comprising (a) one or more alkali metals, (b) one or more metals selected from the group consisting of Zn, Sn and transition metals excluding platinum-group metals, and (c) one or more rare earth metals, and a method of cleaning an exhaust gas with it. Alkali metals may be added to a fuel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.