Carbon Dioxide Capture and Mitigation of Carbon Dioxide Emissions
The present invention describes methods and systems for extracting, capturing, reducing, storing, sequestering, or disposing of carbon dioxide (CO 2 ), particularly from the air. The CO 2 extraction methods and systems involve the use of chemical processes, mineral sequestration, and solid and liquid sorbents. Methods are also described for extracting and/or capturing CO 2 via condensation on solid surfaces at low temperature.
1 . A method for the capture of CO 2 from ambient air, the method comprising:
exposing a solid sorbent material to ambient air;
capturing CO 2 from the ambient air with said solid sorbent material;
recovering said CO 2 from said solid sorbent material; and
subsequently collecting said recovered CO 2 .
2 . The method of claim 1 , wherein said solid sorbent material comprises a matrix.
3 . The method of claim 1 , wherein said solid sorbent material comprises a support material coated with one or more CO 2 sorbents.
4 . The method of claim 3 , wherein said support material comprises a matrix.
5 . The method of claim 1 , wherein said captured CO 2 is recovered by reducing pressure in a chamber containing said solid sorbent material.
6 . The method of claim 5 , wherein pressure in said chamber is reduced to near vacuum pressure.
7 . The method of claim 1 , wherein said collected CO 2 is used in the production of a fuel.
8 . The method of claim 1 , wherein said collected CO 2 is used in an enhanced oil recovery process.
9 . The method of claim 1 , wherein said collected CO 2 is sequestered underground.
10 . The method of claim 1 , where said collected CO 2 is pressurized.
11 . The method of claim 1 , further comprising using said collected CO 2 in a secondary process performed proximate to where said collected CO 2 is captured.
12 . The method of claim 11 , wherein said secondary process is enhance oil recovery or sequestration.
13 . The method of claim 11 , wherein said solid sorbent material comprises a zeolite.