Elektrolyseanordnung für die Alkalische Elektrolyse

Details

Veröffentlichungs-Nr.

EP4071276

Aktenzeichen

EP21020193

Anmeldetag

9. April 2021

Veröffentlichung

4. Juni 2025

Erteilung

4. Juni 2025

Rechtsraum

EP

IPC

C25B1/04C25B9/00C25B9/05C25B9/77C25B15/00C25B15/08

Abstract

The invention relates to an electrolysis arrangement for the electrochemical production of hydrogen and oxygen from an alkaline electrolyte. The electrolysis arrangement comprises anode and cathode separators for the separation of oxygen and hydrogen from the electrolyte, and an anode and cathode pipe system to circulate electrolyte between anode and cathode sections of an electrolysis stack of the electrolysis arrangement. A first connecting pipe interconnects the anode pipe system and the cathode pipe system and comprises a first control valve. A second control valve is arranged within the anolyte pipe system or the catholyte pipe system. A second connecting pipe interconnects the anode pipe system and the cathode pipe system and comprises a third control valve. Said control valves and interconnections are configured so that dependent on an electrolyte flow rate passing the first, second and third control valve, oxygen and hydrogen depleted electrolyte withdrawn from the separators can be supplied unmixed, partly mixed or fully mixed to the anode and cathode sections of the electrolysis stack to control hydrogen to oxygen and oxygen to hydrogen crossover in the electrolysis arrangement.

Anmelder

Firmen

L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude

Land

🇫🇷 Frankreich

Fachgebiete