Separation process combining condensation, membrane separation and flash evaporation
US5755855A · kind A · utility
22Cited by
19References
57Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1997 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | Jan 24, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/2025
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for separating two low-boiling components of a gas-phase mixture. The invention involves three separation steps: condensation, flash evaporation and membrane separation. The steps are integrated together in such a way as to provide a good separation between the components, and to avoid creation of secondary streams that need additional treatment. The invention is particularly useful for separation of low molecular weight organic compounds from other gases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.