Diesel exhaust system including NOx-trap
US6857265B2 · kind B2 · utility
12Cited by
14References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2001 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Jun 4, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An exhaust gas treatment system (8) for a diesel engine (10) having a NOx absorber (28) charged with solid absorbent for absorbing NOx from a diesel exhaust gas and means (18) for introducing intermittently into the exhaust system CO upstream of said absorber (28) whereby the solid absorbent is regenerable by contact with the CO-enriched gas. A process for treating NOx in a diesel exhaust gas comprises absorbing the NOx in a solid absorbent and regenerating the absorbent by contacting it with CO-enriched gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.