| CPC C02F 1/4693 (2013.01) [C02F 1/265 (2013.01)] | 12 Claims |
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1. A system for treating reject brine and capturing carbon dioxide (CO2) from an industrial plant, comprising:
a first electrodialysis (ED) stage including:
a plurality of cell pairs defined between cation exchange membranes, each of the cell pairs including a multivalent ion chamber and a monovalent ion chamber, the multivalent ion chamber and the monovalent ion chamber being separated by an anion exchange membrane;
a first cathode and a first anode at respective ends of the plurality of cell pairs;
a first anolyte chamber defined between the first anode and an adjacent cation exchange membrane; and
a first catholyte chamber defined between the first cathode and an adjacent cation exchange membrane;
a second electrodialysis (ED) stage including:
a plurality of cell groups defined between bipolar membranes, each of the cell groups including a flue gas chamber, a carbonate chamber adjacent the flue gas chamber, a concentrated brine chamber adjacent the carbonate chamber, and an acid chamber adjacent the concentrated brine chamber, the flue gas chamber and the carbonate chamber being separated by an anion exchange membrane, the carbonate chamber and the concentrated brine chamber being separated by a cation exchange membrane, the concentrated brine chamber and the acid chamber being separated by an anion exchange membrane;
a second cathode and a second anode at respective ends of the plurality of cell groups;
a second anolyte chamber defined between the second anode and an adjacent semi-permeable membrane;
a second catholyte chamber defined between the second cathode and an adjacent semi-permeable membrane; and
a bubble column contactor connected to the flue gas chamber; and
a freeze-dryer.
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