Passive CO2 capture device with a helical sorbent structure
US12377380B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2022 |
| Grant date | Aug 5, 2025 |
| Priority date | — |
| Expiry date | Feb 15, 2044 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A device for passive collection of atmospheric carbon dioxide is disclosed, including a vessel having an opening and a sorbent regeneration system. The device also includes a helical sorbent structure rotatably coupled to the vessel. The sorbent structure has a helical framework coupled to a sorbent material. The sorbent structure is movable between collection and release configurations. The collection configuration includes the sorbent structure extending upward from the vessel to expose the sorbent structure to an airflow and allow the sorbent material to capture atmospheric CO2. The sorbent structure is free to rotate on an axis. The sorbent material is constrained to a helix rotating about and propagating along the axis. The release configuration includes a lid covering the opening, and the sorbent material being sufficiently enclosed inside the vessel that the regeneration system may operate to release captured CO2 from the sorbent material and form an enriched gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.