Cryogenic rectification system for producing dual purity oxygen
US5546767A · kind A · utility
15Cited by
10References
8Claims
0Family size
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Key dates
| Filing date | Sep 29, 1995 |
| Grant date | Aug 20, 1996 |
| Priority date | — |
| Expiry date | Sep 29, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2235/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A cryogenic rectification system employing a double column and two auxiliary reboilers associated with one or two auxiliary columns wherein both lower purity oxygen and higher purity oxygen is produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.