Patent ID: 11866642
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  E  Y | IPC C  E

Claim 0:
1. A method for the subterranean regeneration of CO2-philic solvents and the sequestration of carbon dioxide, the method comprising:
exposing the CO2-philic solvent to a CO2-containing gas in an absorber to allow the CO2-philic solvent to absorb at least a portion of the carbon dioxide in the CO2-containing gas, thereby producing a CO2-containing solution, wherein the CO2-philic solvent comprises one or more CO2-philic materials comprising one or more of amines, alkali metal carbonate, or amino acids;
supplying the CO2-containing solution to one or more porous rock fractures via one or more injection conduits in fluid communication with the one or more porous rock fractures;
heating the CO2-containing solution via heat provided by one or more rock fractures in order to release at least a portion of the absorbed carbon dioxide into the one or more rock fractures and thereby regenerate the CO2-philic solvent;
sequestering at least a portion of the released carbon dioxide within the one or more porous rock fractures by adsorbing the carbon dioxide within the porous rock fractures or by reacting the released carbon dioxide with the porous rock fractures to form stable carbonates; and
transporting the regenerated CO2-philic solvent from the one or more porous rock fractures via one or more production conduits.