Alumina/zeolite lean NOx catalyst
US6670296B2 · kind B2 · utility
4Cited by
23References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2001 |
| Grant date | Dec 30, 2003 |
| Priority date | — |
| Expiry date | Feb 5, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2255/9202
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A NOx, catalyst combination for treating a lean exhaust gas stream comprising an alkaline earth-alumina catalyst and an alkaline earth-zeolite catalyst, arranged on a substrate such that the gas stream first contacts the alkaline earth-alumina catalyst prior to contacting the alkaline earth-zeolite catalyst.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.