Kohlendioxid-Rückgewinnungssystem

Details

Veröffentlichungs-Nr.

EP4488417

Aktenzeichen

EP24181599

Anmeldetag

12. Juni 2024

Veröffentlichung

7. Januar 2026

Rechtsraum

EP

IPC

C25B1/23C25B3/26C25B9/21C25B15/08C25B9/23C25B1/00C25B1/04C25B3/25B01D61/44

Abstract

The present invention provides a carbon dioxide recycling system that eliminates a need for a process that recovers and/or concentrates CO₂ to obtain a CO₂ gas at a high concentration and allows generating a CO₂ reduction product. The carbon dioxide recycling system according to the present invention includes: an electrochemical CO₂ reduction device that includes a reduction reaction electrode, an oxidation reaction electrode, and a first ion exchange membrane disposed between the reduction reaction electrode and the oxidation reaction electrode; and CO₂ gasification means that introduces a carbonate aqueous solution in which CO₂ is dissolved to a first half cell formed by including the reduction reaction electrode and the first ion exchange membrane as catholyte, and the CO₂ gasification means gasifying CO₂ in the catholyte immediately before reducing the CO₂ in the catholyte in the reduction reaction electrode.

Anmelder

Firma

Hitachi, Ltd.

Land

🇯🇵 Japan

Fachgebiete