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METHODS AND SYSTEMS FOR CAPTURING AND STORING CARBON DIOXIDE

United States Patent Application

20170333840
A1
View the Complete Application at the US Patent & Trademark Office
Methods and systems for capturing and storing carbon dioxide are disclosed. In some embodiments, the methods include the following: mixing materials including magnesium or calcium with one or more acids and chelating agents to form a magnesium or calcium-rich solvent; using the organic acids derived from biogenic wastes as acids or chelating agents; generating carbonate ions by reacting a gas including carbon dioxide with a carbonic anhydrase biocatalyst; reacting the solvent with the carbonate ions to form magnesium or calcium carbonates; recycling a solution containing the biocatalyst after forming magnesium or calcium carbonates for re-use in the generating step; using the magnesium and calcium carbonates as carbon neutral filler materials and using the silica product as green filler materials or inexpensive absorbents.
Park, Ah-Hyung Alissa (New York, NY), Swanson, Edward J. (New York, NY), Zhao, Huangjing (New York, NY), Gadikota, Greeshma (New York, NY), Brady, Patrick V. (Albuquerque, NM), Patel, Tushar (New York, NY), Banta, Scott (Fairfield, CT)
THE TRUSTEES OF COLUMBIA UNIVERSITY IN THE CITY OF NEW YORK (New York NY)
15/ 423,691
February 3, 2017
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] This invention was made with government support under grant no. DOE ARPA-E 5-22614 awarded by the Department of Energy. The government has certain rights in the invention.