Integration of thermochemical water splitting with CO2 direct air capture
AssigneesCalifornia Institute of Technology, University of Delaware
InventorsMark E. Davis, Bingjun Xu, Casper O. Brady
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Abstract
The present disclosure is directed to the integration of direct air capture of carbon dioxide with thermochemical water splitting, the latter optionally driven by solar energy. The disclosure is also directed to a process comprising extracting carbon dioxide from an air stream by contacting the air-stream with an alkali metal ion-transition metal oxide of empirical formula AxMO2 (0.1<x≤1), where A represents the alkali metal ion comprising sodium ion, potassium ion, or a combination thereof and M comprises iron, manganese, or a combination thereof to form a transition metal composition comprising an oxidized ion extracted-transition metal oxide.
Claims26
A process comprising extracting carbon dioxide from an air stream by contacting the air stream with a composition comprising an alkali metal ion-transition metal oxide of empirical formula AxMO2 (0.1<x≤1) to form a transition metal composition comprising an oxidized ion extracted-transition metal oxide, where A represents the alkali metal ion comprising sodium ion, potassium ion, or a combination thereof and M comprises iron, manganese, or a combination thereof.
Dependencies are inferred from the claim text.