Process for dehydration of gases and composite permeable membranes therefor
US5067971A · kind A · utility
47Cited by
25References
56Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1990 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Nov 6, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2313/44
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Process for the dehydration of gases using composite permeable membranes, preferably hollow fiber composite membranes comprised of a porous support coated with an ultrathin layer of a defined sulfonated polysulfone or sulfonated polyether ketone. The processes also contemplate the use of a sweep or purge gas on the water-enriched permeate side of the composite membrane to increase the efficiency of the dehydration process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.