Methods and systems for capturing and storing carbon dioxide

Park, Ah-Hyung Alissa; Swanson, Edward J.; Zhao, Huangjing; Gadikota, Greeshma; Brady, Patrick V.; Patel, Tushar; Banta, Scott

DOE OSTI · 1600215

Methods and systems for capturing and storing carbon dioxide

Park, Ah-Hyung Alissa·Swanson, Edward J.·Zhao, Huangjing·Gadikota, Greeshma·Brady, Patrick V.·Patel, Tushar·Banta, Scott

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Abstract

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.

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Park, Ah-Hyung Alissa, Swanson, Edward J., Zhao, Huangjing, Gadikota, Greeshma, Brady, Patrick V., Patel, Tushar, Banta, Scott. 2019-10-29. Methods and systems for capturing and storing carbon dioxide. https://www.osti.gov/biblio/1600215

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