CO2RR-OOR electrolyser system and related process for facilitating the capture and conversion of CO2 in gas mixture streams
US12365995B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 10, 2023 |
| Grant date | Jul 22, 2025 |
| Priority date | — |
| Expiry date | May 10, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25B15/087
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present disclosure relates to a MEA electrolyser comprising a cathodic compartment operating CO2 reduction reactions (CO2RR) of CO2 from a gaseous CO2-containing stream, an anodic compartment operating all-liquid organic oxidation reactions (OOR), an ionic exchange membrane in between. A CO2RR-OOR system can further include a gas-liquid separation unit in fluid communication with the anodic compartment to receive the anodic product mixture and separate gaseous CO2 from the anodic product mixture to produce a CO2-depleted liquid product stream and a recovered pure gaseous CO2 stream. The system can further include a recycle line in fluid communication with the gas-liquid separation unit to redirect the recovered pure gaseous CO2 stream to the cathodic compartment of the MEA electrolyser as a portion of the gaseous CO2-containing stream. The present disclosure also concerns a process for electrochemically converting the gaseous CO2-containing stream to multi-carbon products in such a MEA CO2RR-OOR electrolyser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.