Removal of carbon dioxide from air
The present invention is directed to methods for removing CO 2 from air, which comprises exposing sorbent covered surfaces to the air. The invention also provides for an apparatus for exposing air to a CO 2 sorbent. In another aspect, the invention provides a method and apparatus for separating carbon dioxide (CO 2 ) bound in a sorbent.
1. A method for the capture of CO 2 from outdoor ambient air, the method comprising:
capturing CO 2 from the outdoor ambient air with a solid sorbent material comprising an amine;
separating said CO 2 from said solid sorbent material; and
subsequently collecting said separated CO 2 ;
wherein said solid sorbent material is an anion exchange material.
2. A method for the capture of CO 2 from ambient air, the method comprising:
capturing CO 2 from the ambient air with a solid sorbent material comprising an amine;
separating said CO 2 from said solid sorbent material; and
subsequently collecting said separated CO 2 ;
wherein said solid sorbent material comprises a plurality of membranes.
3. The method of claim 2 , wherein said plurality of membranes are arranged in series.
4. The method of claim 2 , wherein said plurality of membranes are spaced apart from one another with spacing from 1 mm to 25 mm.
5. A method for the capture of CO 2 from ambient air, the method comprising:
capturing CO 2 from the ambient air with a solid sorbent material comprising an amine;
separating said CO 2 from said solid sorbent material; and
subsequently collecting said separated CO 2 ;
wherein said solid sorbent material comprises tubes.
6. A method for the capture of CO 2 from ambient air, the method comprising:
capturing CO 2 from the ambient air with a solid sorbent material comprising an amine;
separating said CO 2 from said solid sorbent material; and
subsequently collecting said separated CO 2 ;
wherein said solid sorbent material comprises a foam structure.