Process for fractionating close boiling components of a multi-component system
US4360405A · kind A · utility
5Cited by
1References
5Claims
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Assignee
Inventor
Key dates
| Filing date | Jul 8, 1981 |
| Grant date | Nov 23, 1982 |
| Priority date | — |
| Expiry date | Jul 8, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01B5/02
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
There is disclosed a process and apparatus for the fractionation of close boiling components of a multi-component system and comprised of at least two fractionation columns having a plurality of equilibrium stages wherein the vapor from a down-stream fractionation column is compressed and passed into a lower portion of a preceding fractionation column. In a particularly preferred embodiment, the compressed overhead vapor stream is passed in heat transfer relationship to a liquid stream withdrawn from the preceding fractionation column prior to introduction into the lower portion of such preceding fractionation column.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.