Carbon Dioxide Capture and Mitigation of Carbon Dioxide Emissions

Abstract

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.