Carbon dioxide capture
US8119091B2 · kind B2 · utility
20Cited by
12References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2009 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Oct 17, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/151
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method of carbon dioxide capture is disclosed. In a step (a) anhydrous sodium carbonate is separated from a first aqueous solution formed by reacting carbon dioxide and an aqueous solution of sodium hydroxide. In step (b) the anhydrous sodium carbonate is treated by causticization to generate carbon dioxide and sodium hydroxide. The first aqueous solution of step (a) is formed by scrubbing a gas containing carbon dioxide with an aqueous solution of sodium hydroxide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.