Sulfate-based electrolysis processing with flexible feed control, and use to capture carbon dioxide
US9493881B2 · kind B2 · utility
20Cited by
45References
24Claims
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Key dates
| Filing date | Mar 23, 2012 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Jul 7, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/151
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method including electrolysis processing using sulfate-based electrolytes includes precipitating sodium sulfate decahydrate from a salt solution and then redissolving sodium sulfate decahydrate to prepare feed of electrolyte solution for the electrolysis processing. Front-end processing may be used to treat mixed salt solutions, including brine solutions. Calcium sulfate reagent may provide a sulfate source to regenerate electrolyte solution following carbon capture, and with carbon dioxide being sequestered in the form of calcium carbonate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.