CO2-facilitated transport membrane and method for producing the same
US8197576B2 · kind B2 · utility
3Cited by
8References
3Claims
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Key dates
| Filing date | Jan 22, 2009 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Jan 22, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A CO2-facilitated transport membrane of excellent carbon dioxide permeability and CO2/H2 selectivity, which can be applied to a CO2 permeable membrane reactor, is stably provided. The CO2-facilitated transport membrane is formed such that a gel layer 1 obtained by adding cesium carbonate to a polyvinyl alcohol-polyacrylic acid copolymer gel membrane is supported by a hydrophilic porous membrane 2. More preferably, a gel layer supported by a hydrophilic porous membrane 2 is coated with hydrophilic porous membranes 3 and 4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.