Evaporite method to sequester carbon dioxide
US8333942B1 · kind B1 · utility
0Cited by
2References
11Claims
0Family size
Inventor
Key dates
| Filing date | Feb 9, 2010 |
| Grant date | Dec 18, 2012 |
| Priority date | — |
| Expiry date | Apr 6, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01D7/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention uses evaporites, e.g., from dried prehistoric lake beds to sequester carbon. The invention provides a method of sequestering carbon comprising: (a) dissolving crude naturally formed evaporites in water to form dissolved evaporite cations and anions; (b) contacting aqueous dissolved carbonate or bicarbonate, formed by dissolving carbon dioxide in water, with the dissolved evaporite cations to form precipitated carbonate mineral; and (c) sequestering the precipitated carbonate or bicarbonate mineral.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.