Process for membrane separation of an olefin that is contained in a hydrocarbon mixture
US9095814B2 · kind B2 · utility
0Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2007 |
| Grant date | Aug 4, 2015 |
| Priority date | — |
| Expiry date | Aug 16, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2323/081
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
This invention relates to the field of processes for membrane separation and applies in particular to the purification of C2 or C3 olefins. This process makes it possible more particularly to separate propylene from a mixture that contains other C3 hydrocarbons such as propane. The membranes that are used in the process according to this invention are vitreous polymer-based membranes whose pattern contains a bis-phenyl-9,9-fluorene group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.