Devices, systems, and methods for electrochemically purifying hydrogen
US12397262B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Sep 22, 2022 |
| Grant date | Aug 26, 2025 |
| Priority date | — |
| Expiry date | Jan 10, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Hydrogen gas purifier electrochemical cells, systems for purifying hydrogen gas, and methods for purifying hydrogen gas are provided. The cells, systems, and methods employ double membrane electrode (DMEA) electrochemical cells that enhance purification while avoiding the complexity and cost of conventional cells. The purity of the hydrogen gas produced by the cells, systems, and methods can be enhanced by removing at least some intermediate gas impurities from the cells. The purity of the hydrogen gas produced by the cells, systems, and methods can also be enhanced be introducing hydrogen gas to the cells to replenish any lost hydrogen. Water electrolyzing electrochemical cells and methods of electrolyzing water to produce hydrogen gas are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.