Treatment of NOx-containing gas streams
US8784762B2 · kind B2 · utility
4Cited by
24References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 15, 2011 |
| Grant date | Jul 22, 2014 |
| Priority date | — |
| Expiry date | Feb 15, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23G1/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Methods and systems for treating a gas stream comprising NOx are disclosed. In one embodiment of the method, the gas stream comprising NOx is reacted with ozone to form oxidation products including nitrogen sesquioxide and nitrogen pentoxide. At least a portion of the nitrogen sesquioxide and nitrogen pentoxide is reacted with water to form nitric acid, and a solubilized form of the nitric acid is collected and may be reused or otherwise utilized. Systems for conducting the method also are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.