公开(公告)号：US20230131407A1

公开(公告)日：2023-04-27

申请号：US17974069

申请日：2022-10-26

申请人： L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude

发明人： Marie-Khuny KHY ,  Maxime BUTLER ,  Marie PORTIER

IPC分类号： C25B15/08 ,  C25B1/04 ,  C25B9/67 ,  C25B9/77

摘要： The invention relates to an electrolysis arrangement for alkaline electrolysis and a method for producing hydrogen and oxygen by electrolysis of an alkaline electrolysis medium. According to the invention, an anolyte deaerating means is arranged downstream of an anolyte gas-liquid separator and is arranged upstream of the electrolysis cell stack of the electrolysis arrangement, and/or a catholyte deaerating means is arranged downstream of a catholyte gas-liquid separator and arranged upstream of the electrolysis cell stack of the electrolysis arrangement. By this arrangement, the fact is exploited that many undesirable gas components have a much lower solubility in the alkaline electrolysis medium than in pure deionised water, which is supplied as fresh water to the electrolysis arrangement for compensation of the water consumed by the electrochemical reaction.