Treatment of exhaust gas
US6696031B1 · kind B1 · utility
41Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2002 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Mar 19, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for treating exhaust gas from internal combustion engines wherein the combustion exhaust gas contains HC, CO, O2, soot and possibly NOx. In treating the combustion exhaust gas, HC is oxidized to COx and H2O: NO, if present, is oxidized to NO2 and soot is oxidized by reaction with NOx. In addition, NOx is generated by oxidizing ammonia and NOx is introduced into the exhaust gas upstream of the oxidization of soot by reaction with NOx.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.