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US 11,976,445 B2Granted
Atmospheric water generation method and device
AssigneeBeair Water and Air Technologies Ltd.
InventorsJoshua Lewis Colman, Gershon Levitsky
Life of this patent
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Abstract
Provided herein are systems, devices and methods for generating water from atmospheric air, making use of a molecular selective processing unit and a vapor exchange unit to efficiently generate pure water from water vapors, selectively separated from air.
Claims17
A device for continuously precipitating water from atmospheric air, the device comprising:
- a) a plurality of a water vapor selectivity units, each unit comprising:
- a first side being the air delivery side and ii) a second side, being the water generation side;
- and
- a molecular selective processing unit, said molecular selective processing unit comprises a selective membrane having a thickness in the range of about 10-150 micron, said membrane is a Nafion membrane, or a non-porous membrane impregnated with Nafion solution;
- and one or more support means on a first face of the membrane and on a second face of the membrane, the support means is configured to increase the thermal isolation from either side of the membrane, said support on the second face of the membrane comprises a hydrophobic porous membrane;
- wherein said molecular selective processing unit is placed between said first side and second side to separate said first and second sides;
- and
- b) a vapor exchange unit located in the water generation side, said vapor exchange unit is configured to precipitate water from water vapors selectively entering the water generation side from the air delivery side through the molecular selective processing unit;
- wherein a continuous water vapor gradient across the selective membrane is maintained by condensation to water droplets;
- thereby facilitating continuous water precipitation from atmospheric air.
7 more elements
A method for precipitating water from atmospheric air, the method comprising:
- providing a flow of air to first side of a molecular selective processing unit, said molecular selective processing unit comprises a water vapor selective membrane, having a thickness in the range of about 10-150 micron, said membrane is membrane is a Nafion membrane, or a non-porous membrane impregnated with Nafion solution, and one or more support means on a first face of the membrane and/or on a second face of the membrane, said support on the second face of the membrane comprises a hydrophobic porous membrane;
- wherein said molecular selective processing unit is placed between the first side, being the air delivery side and a second side, being a water generation side;
- and
- precipitating water in the water generation side, wherein the water is precipitated from water vapors selectively entering the water generation side from the air delivery side only through the molecular selective processing unit.
1 more element
Dependencies are inferred from the claim text.