Carbon capture process utilizing inert gas medium to assist thermal desorption
US11931686B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2023 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Sep 18, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2259/4009
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention uses an inert gas medium to heat an adsorbent bed and effect desorption of one or more chemical moieties adsorbed thereon. In particular, the invention is useful for the desorption of CO2 from adsorption beds utilized for direct air capture (DAC) of CO2 as well as adsorption beds utilized for capture of CO2 from flue gases. The inert gas medium is heated to the necessary sorbent desorption temperature and passed through a CO2 adsorbent bed to bring it up to the proper desorption temperature and effect desorption. Once the bed is fully desorbed, the CO2-enriched gas medium is passed through one or more condensers to separate the inert gas medium from the CO2 product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.