Methods and systems for oxidizing nitric oxide in a gas stream
US8377400B2 · kind B2 · utility
11Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2010 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Jan 5, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2523/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An after-treatment system architecture and method for oxidizing the nitric oxide component of a gas stream are disclosed. One embodiment may include treatment of a gas stream that includes NOx with a perovskite catalyst of the general formula ABO3 or a modified formula of ABO3 wherein a small amount of a promoter material is substituted for a portion of at least one of element A or element B in a catalytic oxidation reaction to oxidize nitric oxide in the gas stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.