Separation of gas mixtures
US5207065A · kind A · utility
9Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1991 |
| Grant date | May 4, 1993 |
| Priority date | — |
| Expiry date | Sep 30, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S62/903
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provises a method and apparatus for separating a gas mixture. In accordance therewith, the gas mixture is rectified in a dephlegmator. The dephlegmator has first and second sets of heat exchange passages which are in a heat exchange relationship with the gas mixture being rectified. A stream of a first heat exchange fluid is passed through a first of the set of heat exchange passages so as to condense some of the gas mixture. A stream of a second heat exchange fluid is sub-cooled by passage through a second set of the heat exchange passages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.