Cryogenic rectification system for producing ultra high purity oxygen
US6327873A · kind A · utility
2Cited by
10References
10Claims
0Family size
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Key dates
| Filing date | Jun 14, 2000 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Jun 14, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/925
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A cryogenic rectification system comprising an upstream krypton/xenon knockout column and a downstream oxygen upgrader column wherein the knockout column processes a crude feed for removal of heavy components including hydrocarbons and the upgrader column produces ultra high purity oxygen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.