Method and apparatus for electrorefining impure hydrogen
US7175751B2 · kind B2 · utility
3Cited by
10References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2003 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Sep 12, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/36
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method and system for electrochemically purifying an impure stream of hydrogen. Hydrogen is absorbed into a gas diffusion anode from the impure hydrogen stream and oxidized to form hydrogen ions and electrons which are released into an alkaline solution. An electrolytic cathode also positioned in the alkaline solution decomposes water to form hydrogen and hydroxyl ions which combine with the hydrogen ions to maintain equilibrium of the system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.