Process for the removal of nitrogen oxides from gas streams
US6136284A · kind A · utility
14Cited by
14References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1999 |
| Grant date | Oct 24, 2000 |
| Priority date | — |
| Expiry date | Dec 9, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2259/402
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a process for removing nitrogen oxides from gas streams such as furnace or utility boiler flue gas streams. An ozone adsorption system is used to adsorb and concentrate ozone. A slip stream containing nitrogen oxides is introduced into an ozone adsorption system to desorb ozone and the ozone-containing slip stream gas is then directed to a reactor duct along with the primary nitrogen oxide-containing gas stream where the nitrogen oxides are converted to N.sub.2 O.sub.5.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.