Purifying carbon dioxide using activated carbon
US8282715B1 · kind B1 · utility
17Cited by
16References
5Claims
0Family size
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Key dates
| Filing date | Jun 5, 2012 |
| Grant date | Oct 9, 2012 |
| Priority date | — |
| Expiry date | Jun 5, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/151
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Carbon dioxide-containing feed stream such as flue gas is treated to produce a high-purity carbon dioxide stream by a series of steps including removing SOx and NOx with activated carbon, carrying out subambient-temperature processing to produce a product stream and a vent stream, and treating the vent stream by pressure swing adsorption or by physical or chemical absorption to produce a product stream which is recycled to the feed stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.