Ammonia mediated carbon dioxide (CO2) sequestration methods and systems
AssigneeBlue Planet Systems Corporation
InventorsBrent R. Constantz, Jacob Schneider, Mark Bewernitz
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Abstract
Methods of sequestering carbon dioxide (CO2) are provided. Aspects of the methods include contacting an aqueous capture ammonia with a gaseous source of CO2 under conditions sufficient to produce an aqueous ammonium carbonate. The aqueous ammonium carbonate is then combined with a cation source under conditions sufficient to produce a solid CO2 sequestering carbonate and an aqueous ammonium salt. The aqueous capture ammonia is then regenerated from the from the aqueous ammonium salt. Also provided are systems configured for carrying out the methods.
Claims10
A system for sequestering CO2 from a gaseous source of CO2, the system comprising:
- a CO2 gas/aqueous capture ammonia module;
- a carbonate production module;
- and
- an aqueous capture ammonia regeneration module configured to produce aqueous capture ammonia by heating an aqueous ammonium salt produced from the carbonate production module in the presence of an alkalinity source.
Dependencies are inferred from the claim text.