Carbon sequestration methods and systems, and compositions produced thereby
AssigneeBlue Planet, Ltd.
InventorsBrent R. Constantz, Mark Bewernitz, Jacob Schneider, Chris Camire
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Abstract
Aspects of the invention include methods of removing carbon dioxide (CO2) from a CO2 containing gas. In some instances, the methods include contacting CO2 containing gas with a bicarbonate buffered aqueous medium under conditions sufficient to produce a bicarbonate rich product. Where desired, the resultant bicarbonate rich product or a component thereof may then be stored or further processed, e.g., combined with a divalent alkaline earth metal cation, under conditions sufficient to produce a solid carbonate composition. Aspects of the invention further include systems for practicing the methods, as well as products produced by the methods.
Claims18
A system for removing CO2 from a CO2 containing gas, the system comprising:
- a source of the CO2 containing gas, wherein the source of the CO2 containing gas is an industrial plant;
- an aqueous medium source;
- an alkaline earth metal cation source that is distinct from the aqueous medium source;
- and
- a single reactor configured to:
- contact the CO2 containing gas with the aqueous medium under conditions sufficient to produce a bicarbonate rich product;
- and
- contact the bicarbonate rich product with alkaline earth metal cations from the alkaline earth metal cation source to produce a solid carbonate from the bicarbonate rich product and the alkaline earth metal cations in a continuous process.
A system for removing CO2 from a CO2 containing gas, the system consisting of:
- a source of the CO2 containing gas, wherein the source of the CO2 containing gas is an industrial plant;
- an aqueous medium source;
- an alkaline earth metal cation source that is distinct from the aqueous medium source;
- a single reactor configured to:
- contact the CO2 containing gas with the aqueous medium under conditions sufficient to produce a bicarbonate rich product;
- and
- contact the bicarbonate rich product with alkaline earth metal cations from the alkaline earth metal cation source to produce a solid carbonate composition from the bicarbonate rich product and the alkaline earth metal cations in a continuous process;
- and
- a container containing an amount of the solid carbonate composition.
Dependencies are inferred from the claim text.