Process for the separation of olefins from paraffins using membranes
US7361800B2 · kind B2 · utility
18Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 2004 |
| Grant date | Apr 22, 2008 |
| Priority date | — |
| Expiry date | Nov 7, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2400/20
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Chitosan membranes chelated with silver or cuprous material may be used to separate olefins from a mixture of olefins and paraffins. The feed stream is humidified, demisted, treated to remove sulfur compounds and passed to a cell having a chitosan membrane containing chelated silver or cuprous compounds. The process has a reasonable flux rate and is operable at reasonable temperatures and pressures. The process could be used in an olefin separation train.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.