Process and apparatus for fractionating close boiling components of a multi-component system
US4315802A · kind A · utility
6Cited by
2References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 12, 1980 |
| Grant date | Feb 16, 1982 |
| Priority date | — |
| Expiry date | May 12, 2000 |
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 downstream 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preferred embodiment, the compressed overhead vapor stream is passed in heat transfer relationship to a liquid stream withdrawn from the preceding fractionation column prior to introduction into the lower portion of such preceding fractionation column.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.