Process and apparatus for the production of gaseous oxygen with a variable flow by air distillation
US5082482A · kind A · utility
15Cited by
8References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 18, 1990 |
| Grant date | Jan 21, 1992 |
| Priority date | — |
| Expiry date | Sep 18, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/939
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
To meet the requirement of a variable demand of gaseous oxygen, a constant flow of liquid oxygen is sent from the double distillation column into a container, and a variable flow of liquid oxygen is withdrawn therefrom, which is thereafter vaporized in a heat exchanger by condensation of a corresponding flow of incoming air. The liquefied air is stored in a second container, from which a constant flow of liquefied air is sent into the double column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.