Alkaline water electrolysis process and alkaline water electrolyzer
OwnerMatthias Nebeninventor
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Abstract
An alkaline water electrolyzer includes an electronic controller, a stack of electrolysis cells each comprising an anode and a cathode. The electrolyzer is configured to contain an electrolyte made of an anolyte and a catholyte. The electrolyzer also includes a system controlled by the electronic controller configured to maintain a concentration of an impurity in the electrolyte within a target range by measuring a characteristic representative of the concentration of the impurity in the electrolyte and, in response to the measured concentration of the impurity, add a quantity of the impurity into the electrolyte.
Claims19
An alkaline water electrolysis process making use of an electrolyzer comprising a stack of electrolysis cells each comprising an anode and a cathode, the electrolyzer being configured to contain an electrolyte made of an anolyte and a catholyte, wherein the process comprises:
- measuring at least one characteristic representative of a concentration of an impurity in the electrolyte;
- and
- regulating the concentration of the impurity in the electrolyte based on the at least one measured characteristic in the electrolyte so as to maintain a concentration of the impurity within a target range by lowering the concentration of the impurity in the electrolyte or delivering a quantity of the impurity into the electrolyte.
An alkaline water electrolyzer comprising an electronic controller, a stack of electrolysis cells each comprising an anode and a cathode, the electrolyzer being configured to contain an electrolyte made of an anolyte and a catholyte, wherein the electrolyzer further comprises a system controlled by the electronic controller configured to maintain a concentration of an impurity in the electrolyte within a target range by measuring a characteristic representative of the concentration of the impurity in the electrolyte and, in response to the measured concentration of the impurity, add a quantity of the impurity into the electrolyte.
Dependencies are inferred from the claim text.