Method for purifying an oxygen-rich exhaust gas
US5514355A · kind A · utility
6Cited by
20References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 2, 1994 |
| Grant date | May 7, 1996 |
| Priority date | — |
| Expiry date | Feb 2, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst, for purifying an exhaust gas, is a zeolite catalyst for removing nitrogen oxides, carbon monoxide and hydrocarbons from an oxygen-rich exhaust gas containing the nitrogen oxides, carbon monoxide and hydrocarbons, wherein the zeolite has an SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of 10 or more and contains nickel, or wherein the zeolite has an SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of 15 or more, and contains nickel and a rare earth metal or an alkaline earth metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.