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
The invention provides a system for continuous generation of gases, the system comprising an electrochemical device and an active-material regeneration device.
Claims22
1-50. (canceled)
A system for generation of gases, the system comprising
- an electrochemical device comprising one or more electrode assemblies and a redox-active material, wherein the redox-active material is provided as (i) an electrode material or (ii) as a dispersion of a redox-active material;
- and
- a redox-active material regeneration device that is external to the electrochemical device;
- wherein the electrochemical device comprises means configured and operable to output, while the electrochemical device is in operation, the redox-active material, in an oxidized form, from the electrochemical device to the regeneration device and means configured and operable to input, while the electrochemical device is in operation, the redox-active material, in a reduced form, from the regeneration device back into the electrochemical device;
- such that the amount of the redox-active material in the reduced form remains substantially constant during operation.
An electrochemical device for generation of a gas utilizing 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 at least one redox-active material or a medium comprising same 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 at least one redox-active material or a medium comprising same back into the device;
- such that the amount of the at least redox-active material in the reduced form in the device remains substantially constant during device operation.
An electrochemical device for generation of a gas utilizing at least one redox-active material having an oxidized form and a reduced form, the device comprising a rotary screw conveyor configured and operable to lift the active material and transport it from the electrochemical device and into a generation device, wherein the electrochemical device and regeneration device are associated through an external closed loop system defining a path of the active material, and wherein the regeneration device is integrally positioned or associated with the external closed loop system.
A continuous process for producing hydrogen gas in an electrochemical device and optionally oxygen gas, the electrochemical device comprising an electrode assembly and a redox-active material, the process comprising:
- continuously generating hydrogen gas and an oxidized redox-active material in the electrochemical cell;
- while generation of hydrogen gas continues, flowing or transporting the oxidized redox-active material to a region outside the electrochemical cell, said region comprising means for regenerating the redox-active material;
- generating the redox-active material and producing oxygen gas;
- flowing the redox-active material in a reduced form back into the electrochemical cell;
- and
- repeating the steps one or more times to simultaneously produce hydrogen gas while regenerating the redox-active material.
Dependencies are inferred from the claim text.