Carbon dioxide environmental control system
US11213785B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Jan 22, 2019 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Mar 8, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K9/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An electrochemical system utilizes an anion conducting layer disposed between an anode and a cathode for transporting a working fluid. The working fluid may include carbon dioxide that is dissolved in water and is partially converted to carbonic acid that is equilibrium with bicarbonate anion. An electrical potential across the anode and cathode creates a pH gradient that drives the bicarbonate anion across the anion conducting layer to the cathode, wherein it is reformed into carbon dioxide. Therefore, carbon dioxide is pumped across the anion conducting layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.