Thermochemical method for producing hydrogen from water
US4188370A · kind A · utility
2Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 8, 1978 |
| Grant date | Feb 12, 1980 |
| Priority date | — |
| Expiry date | Jun 8, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/36
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A closed system for obtaining hydrogen from water is provided by combining a first step of obtaining hydrogen by reacting water and ferrous halide, a second step of converting triiron tetraoxide produced as a by-product in the first step to ferrous sulfate, a third step of obtaining oxygen and by-products by thermally decomposing said ferrous sulfate, and a fourth step of returning said by-products by thermally decomposing said ferrous sulfate, and a fourth step of returning said by-products obtained in the third step to any of the previous steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.