HYBRID METHOD FOR CARBON CAPTURE

1 . A carbon dioxide separation system, comprising:

a gaseous stream including carbon dioxide;

an activated carbon filter comprising nanopores, wherein the gaseous stream including carbon dioxide is configured to flow through at least a portion of the activated carbon filter, the activated carbon filter being configured to separate the gaseous stream into a carbon dioxide-rich stream and a carbon dioxide-depleted stream; and

an adsorption system configured to separate the carbon dioxide-rich stream.

2 . The system of claim 1 , wherein the nanopores include a diameter from about 2 nanometers to about 6 nanometers.

3 . The system of claim 1 , wherein the adsorption system further separates the carbon dioxide rich stream into a substantially pure carbon dioxide stream and a carbon dioxide-depleted stream by electric swing adsorption.

4 . The system of claim 3 , wherein the adsorption system includes an apparatus comprising a porous dielectric adsorbent material in between and in electrical communication with a first electrical conductor and a second electrical conductor.

5 . The system of claim 1 , wherein the adsorption system further separates the carbon dioxide rich stream into a substantially pure carbon dioxide stream and a carbon dioxide-depleted stream by physical adsorption.

6 . The system of claim 1 , wherein the adsorption system further separates the carbon dioxide rich stream into a substantially pure carbon dioxide stream and a carbon dioxide-depleted stream by chemical adsorption.

7 . A method of producing carbon dioxide, comprising:

passing a carbon dioxide-containing gas through a graphene based membrane;

preparing an apparatus comprising a porous dielectric adsorbent material in between and in electrical communication with a first electrical conductor and a second electrical conductor;

applying an electric field across the porous dielectric adsorbent material;

passing the carbon dioxide-containing gas into the porous dielectric adsorbent material, wherein the carbon dioxide couples to the first electrical conductor and the second electrical conductor;

removing the electric field and releasing the carbon dioxide; and

capturing the carbon dioxide.

8 . The method of claim 7 , wherein the electric field includes an applied voltage from about 1V to about 3V.

9 . The method of claim 7 , wherein the dielectric adsorbent material includes a non-conductive insulator.

10 . The method of claim 7 , wherein capturing the carbon dioxide includes combining the carbon dioxide with a hydrogen gas to produce at least one of methane or methanol.

11 . A method of removing carbon dioxide from a gas, comprising:

providing a gaseous feed stream including a carbon dioxide gas;

adsorbing the carbon dioxide gas with a porous carbon sorbent comprising a nanoporous single-layer graphene membrane; and

de-adsorbing the carbon dioxide.

12 . The method of claim 11 , wherein the gaseous feed stream includes at least one of a flue gas, an exhaust, or a furnace exhaust.

13 . The method of claim 11 , wherein the porous carbon sorbent includes a mesoporous structure.

14 . The method of claim 11 , wherein the porous carbon sorbent includes an activated carbon including at least one of an activated carbon fiber, an activated graphene, a bituminous-coal-based activated carbon, an activated charcoal, or a coal composite.

15 . The method of claim 11 , wherein the porous carbon sorbent includes a carbon foam comprising an activated pitch.

16 . The method of claim 11 , wherein combining the carbon dioxide with a hydrogen gas is conducted in the presence of a catalyst.

17 . The method of claim 16 , wherein the catalyst includes at least one of molybdenum sulfide, ruthenium, or copper.

18 . The method of claim 11 , wherein the adsorbing and de-adsorbing of the carbon dioxide gas is conducted by an electric swing adsorption.

19 . The method of claim 11 , further comprising combining the carbon dioxide with a hydrogen gas to produce at least one of methane or methanol.