Process and apparatus for the production of gaseous oxygen under pressure
US5329776A · kind A · utility
28Cited by
14References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 17, 1993 |
| Grant date | Jul 19, 1994 |
| Priority date | — |
| Expiry date | Nov 17, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/94
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In this process for the production of gaseous oxygen under pressure by air distillation in a double column, pumping liquid oxygen withdrawn at the bottom of the low pressure column, and vaporization of compressed liquid oxygen by heat exchange with air at high pressure, all the air to be distilled is compressed at the high air pressure, followed by expanding, at the pressure of the mean pressure column, the excess fraction of this air in a turbine which is decelerated by means of an air booster, and at least one liquid product is withdrawn from the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.