Energy efficient method for stripping CO2 from seawater
AssigneeX Development LLC
InventorMatthew Eisaman
Life of this patent
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Abstract
A method including increasing modifying a volume of seawater that holds an amount of dissolved inorganic carbon; acidifying the amount of seawater; and collecting an amount of carbon dioxide from the acidified seawater. A system including an electrodialysis unit including an acidified solution compartment, a basified solution compartment, a membrane and an acidified solution output compartment; a vessel coupled to an inlet of the acidified solution compartment and operable to contain a modified volume of seawater therein; and a desorption unit coupled to the acidified compartment output, the desorption unit operable to receive carbon dioxide gas from a solution from the acidified output compartment.
Claims16
A method comprising:
- increasing a concentration of dissolved inorganic carbon in a volume of seawater to produce modified seawater;
- acidifying the modified seawater by flowing the modified seawater into an acidified solution compartment in an electrodialysis unit;
- flowing the seawater from a second volume of the seawater into a basified solution compartment in the electrodialysis unit at the same time as flowing the modified seawater into the acidified solution compartment, wherein the second volume of the seawater is unmodified;
- and
- collecting an amount of carbon dioxide from the acidified seawater.
A method comprising:
- removing a portion of water molecules from a volume of seawater comprising an amount of dissolved inorganic carbon to form modified seawater;
- after removing a portion of water molecules from the volume of seawater, introducing the modified seawater into an acidified solution compartment in an electrodialysis unit;
- acidifying the seawater in the acidified solution compartment;
- at the same time as introducing the modified seawater into the acidified solution compartment, introducing the seawater from a second volume of the seawater into a basified solution compartment in the electrodialysis unit, wherein the second volume of the seawater is unmodified;
- and
- collecting an amount of carbon dioxide from the acidified seawater.
Dependencies are inferred from the claim text.