Direct air capture system removing carbon dioxide
US11484831B1 · kind B1 · utility
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12Claims
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Key dates
| Filing date | Aug 18, 2021 |
| Grant date | Nov 1, 2022 |
| Priority date | — |
| Expiry date | Aug 18, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02C20/40
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A direct air capture (DAC) system for removal of carbon dioxide from ambient air has a reaction chamber having an air intake opening and an air exhaust opening, an air movement mechanism positioned to move air from outside through the reaction chamber, utilizing the air intake and the air exhaust openings, and a mechanism introducing sodium hydroxide into the reaction chamber. Carbon dioxide in the air moved through the reaction chamber interacts chemically with the sodium hydroxide, producing sodium carbonate and water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.