Back to results
US 2023/0295040 A1Published application
Methods and systems to capture carbon dioxide emissions
AssigneeArelac, Inc.
InventorsCraig W. Hargis, Ryan J. Gilliam
Life of this patent
Estimating the term…
Abstract
Provided herein are methods and systems to utilize cement or cement clinker as feedstock to capture carbon dioxide emissions and form a composition comprising calcium carbonate.
Claims25
A method to form a composition, comprising:
- (i) dissolving cement and/or cement clinker in N-containing salt solution to produce an aqueous solution comprising calcium salt;
- and (ii) treating the aqueous solution comprising calcium salt with a gaseous stream comprising carbon dioxide to form a composition comprising calcium carbonate.
A system to form a composition, comprising:
- (i) a dissolution reactor configured for dissolving cement and/or cement clinker in N-containing salt solution to produce an aqueous solution comprising calcium salt and a gaseous stream comprising ammonia;
- and
- (ii) a treatment reactor operably connected to the dissolution reactor and configured for treating the aqueous solution comprising calcium salt with a gaseous stream comprising carbon dioxide and the gaseous stream comprising ammonia to form a composition comprising calcium carbonate.
Dependencies are inferred from the claim text.