Exhaust emission control process for internal combustion engines
US6630115B1 · kind B1 · utility
22Cited by
12References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2000 |
| Grant date | Oct 7, 2003 |
| Priority date | — |
| Expiry date | Apr 17, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J37/0205
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In an exhaust gas purification process for eliminating nitrogen oxides contained in a combustion exhaust gas emitted from an internal combustion engine with a reducing gas such as carbon monoxide, hydrocarbons, etc. contained in the exhaust gas in the presence of a catalyst, a catalyst comprising all of Rh, Pt and Pd, at least one member selected from alkali metals and alkaline earth metals, and Mn or its compound, supported on a porous carrier is used.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.