Multicomponent membranes for gas separations
US4230463A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 1977 |
| Grant date | Oct 28, 1980 |
| Priority date | — |
| Expiry date | Sep 13, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2323/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Multicomponent membranes for gas separation are disclosed which are effective for separating at least one gas from gaseous mixtures by permeation wherein the multicomponent membranes are comprised of a coating in occluding contact with a porous separation membrane. The multicomponent membranes advantageously exhibit less resistance to permeate gas flow for the at least one gas than for at least one remaining gas in the gaseous mixture. For at least one pair of gases the separation factor of the multicomponent membrane is significantly greater than the determined intrinsic separation factor of the material of the coating. Processes and apparatus for gas separation utilizing the multicomponent membranes are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.