Carbon dioxide gas recovery device
US9492783B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 28, 2011 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Jun 20, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/151
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A carbon dioxide gas recovery device is provided which includes an absorption tower causing an absorbent to absorb carbon dioxide gas to generate a rich absorbent and a regeneration tower regenerating a lean absorbent by heating the rich absorbent to separate carbon dioxide gas therefrom. The regeneration tower includes a reboiler system heating the absorbent led out from the regeneration tower and reintroducing the heated absorbent into the regeneration tower and a mixed gas cooling system cooling a mixed gas led out from the regeneration tower, condensing a vapor fraction of a solute and a solvent, reintroducing the condensed vapor fraction into the regeneration tower, and discharging carbon dioxide gas. The carbon dioxide gas recovery device further includes a heat pump as a heat source of an endothermic reaction in which carbon dioxide gas is separated from the rich absorbent in the regeneration tower.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.