Proton conducting membranes for hydrogen production and separation
US9527044B2 · kind B2 · utility
3Cited by
4References
29Claims
0Family size
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Key dates
| Filing date | Sep 30, 2014 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Nov 15, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24997
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In one embodiment, a membrane of proton-electron conducting ceramics that is useful for the conversion of a hydrocarbon and steam to hydrogen has a porous support coated with a film of a Perovskite-type oxide. By including the Zr and M in the oxide in place of Ce, the stability can be improved while maintaining sufficient hydrogen flux for efficient generation of hydrogen. In this manner, the conversion can be carried out by performing steam methane reforming (SMR) and/or water-gas shift reactions (WGS) at high temperature, where the conversion of CO to CO2 and H2 is driven by the removal of H2 to give high conversions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.