System and method for recovery of co2 by aqueous carbonate flue gas capture and high efficiency bipolar membrane electrodialysis

A method for recovering CO2 comprising:

• receiving, in an aqueous capture device, a gas;
• capturing at least portions of the gas including at least CO2 by a capture solution in the aqueous capture device;
• and
• performing an electrodialysis operation on the capture solution by an electrodialysis unit, wherein a CO2 rich process stream and a regenerated capture solution are generated from the capture solution including at least CO2, the CO2 rich process stream being a pressurized process stream at a pressure which maintains the CO2 substantially within the CO2 rich process stream while in the electrodialysis unit.

A method for recovering CO2 comprising:

• receiving, in an aqueous capture device, a gas;
• capturing at least portions of the gas including at least CO2 by a capture solution in the aqueous capture device;
• performing an electrodialysis operation on the capture solution by an electrodialysis unit, wherein a CO2 rich process stream and a regenerated capture solution are generated from the capture solution;
• and
• controlling pH of at least the capture stream prior to the capture stream being operated on by the electrodialysis unit.