Carbon dioxide chemical sequestration from industrial emissions by carbonation
US10850231B2 · kind B2 · utility
0Cited by
13References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2018 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Feb 26, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Techniques are described for chemical sequestration of carbon dioxide and production of precipitated magnesium carbonate. The process can include contacting carbon dioxide from industrial emissions with water and magnesium-containing particulate material, such as serpentinite, which is thermally pre-treated and has a particle size of at most 75 microns. The process can also include separation of the loaded aqueous stream from the solids, followed by precipitation of magnesium carbonate material that includes carbon and oxygen from industrial emissions and magnesium from serpentinite or chrysotile mining residue, for example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.