Stacked membranes and their use in gas separation
US12083474B2 · kind B2 · utility
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19References
19Claims
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Key dates
| Filing date | Dec 15, 2021 |
| Grant date | Sep 10, 2024 |
| Priority date | — |
| Expiry date | Jul 6, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L2290/548
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A membrane system includes a first membrane and a second membrane. At a given temperature and pressure: the first membrane has a permeation rate for a first gas and a selectivity for a gas mixture comprising the first gas a second gas different from the first gas; the second membrane has a permeation rate for the first gas and a selectivity for the gas mixture; the permeation rate of the first membrane is greater than the permeation rate of the second membrane; and the selectivity of the second membrane is greater than the selectivity of the first membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.