Deoxygenation of water
US4017276A · kind A · utility
19Cited by
5References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 22, 1976 |
| Grant date | Apr 12, 1977 |
| Priority date | — |
| Expiry date | Jun 22, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Seawater is deoxygenated with a nitrogen stripping gas, with the nitrogen stripping gas containing stripped oxygen, being subjected to low temperature fractionation to separate oxygen from the nitrogen. The nitrogen recovered from the fractionation is then recycled to the stripping operation. Air is also employed as feed to the fractionation to provide additional nitrogen and reflux requirements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.