Systems and methods for continuous generation of gases
AssigneesH2Pro Ltd, Technion Research & Development Foundation Limited
InventorsGideon Grader, Avner Rothschild, Hen Dotan, Avigail Landman, Asaf Kay, Mordechay Moshkovich
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Abstract
Provided is a system for continuous generation of gases, the system including an electrochemical device and an active-material regeneration device.
Claims8
A system for generation of gases, the system being arranged as a closed-loop system comprising
- an electrochemical device comprising one or more electrode assemblies comprising a movable electrode of a redox-active material, said movable electrode is configured for being movable between the electrochemical device and a regeneration device that is external to the electrochemical device, wherein the redox-active material is formed as a material film on a surface region of the movable electrode or wherein the movable electrode is formed of the redox-active material;
- and
- wherein the system is provided with a mechanical system configured and operable to attach and move the movable electrode from the electrochemical device to the regeneration device, wherein the mechanical system is optionally in a form or comprising a moving belt, a robotic arm, a mechanical lift or a displacing mechanism.
An electrochemical device for generation of a gas utilizing an electrode being formed of or having a surface of at least one redox-active material having an oxidized form and a reduced form, the device comprising
- an external closed loop configured and operable to output, while the device is in operation, the electrode formed of or having the surface of the at least one redox-active material from the device to a regeneration device positioned or associated with the external closed loop, and further configured and operable to input, while the device is in operation, the electrode formed of or having the surface of the at least one redox-active material back into the device;
- such that the amount of the at least redox-active material on the electrode in the reduced form in the device remains substantially constant during device operation,
- wherein the external closed loop further comprises an electrolyte bath positioned between an outlet of the electrochemical device and an inlet of the regeneration device, and
- wherein the electrolyte bath is maintained at a temperature higher than the temperature of the electrolyte medium in the electrochemical device and lower than the temperature of the electrolyte medium in the regeneration device.
A continuous process for producing hydrogen gas and optionally oxygen gas in a closed-loop system comprising an electrochemical device, the electrochemical device comprising an electrode assembly and a movable electrode formed of or having a film of a redox-active material, the process comprising:
- while continuously generating hydrogen gas, transporting the electrode formed of or having a film of the redox-active material in an oxidized form to a region outside the electrochemical cell, said region comprising a regeneration device;
- generating the redox-active material and producing oxygen gas;
- transporting the electrode formed of or having a film of the redox-active material in a reduced form back into the electrochemical cell;
- and
- repeating the process one or more times to simultaneously produce hydrogen gas while regenerating the electrode redox-active material.
Dependencies are inferred from the claim text.