Auxiliary column cryogenic rectification system
US5233838A · kind A · utility
17Cited by
14References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 1, 1992 |
| Grant date | Aug 10, 1993 |
| Priority date | — |
| Expiry date | Jun 1, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/939
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A cryogenic rectification system having an auxiliary column and a double column plant wherein liquid oxygen from the double column plant is vaporized prior to recovery against auxiliary column top vapor producing additional reflux for the double column plant thereby sustaining oxygen recovery under elevated pressure conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.