Verfahren zur Hbr-Elektrolyse mit Verbesserter Ausbeute und Energieeffizienz

Details

Veröffentlichungs-Nr.

EP4748975

Anmeldetag

25. November 2024

Veröffentlichung

27. Mai 2026

Rechtsraum

EP

Abstract

A process of hydrogen production comprising the following steps: i) providing an electrolysis unit (51) comprising one or more electrolytic cells (53) each comprising an anode (59), a cathode (55), and an ion-exchange membrane (57); ii) providing an anolyte (43) comprising hydrogen bromide at a concentration ranging from 0.5 to 12.5 M; and a catholyte (61); the catholyte comprising an aqueous solution of one or more strong acids selected from hydrochloric acid, nitric acid, sulfuric acid, perchloric acid, hydroiodic acid or any mixtures thereof, at a pH of at most 1.0; iii) performing an electrolysis to convert at least a part of the hydrogen bromide of the hydrogen bromide aqueous solution into bromine by operating the one or more electrolytic cells (53); and iv) recovering a liquid effluent (49) comprising bromine from the anode side and a gaseous effluent (47) comprising hydrogen at the cathode side.

Anmelder

Firma

TotalEnergies OneTech

Land

🇫🇷 Frankreich