Method for producing hydrocarbon
AssigneeNational Institute of Advanced Industrial Science and Technology
InventorsTakashi Fujii, Masateru Nishioka
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Abstract
CO2 introduced into the ground reacts with water in the moisture present in the surroundings to convert to hydrocarbon, suppressing leakage of CO2 above ground. The method for producing hydrocarbon has an introduction step for introducing CO2 into a storage site in the ground where moisture and a catalytic metal are present, the pressure is 5 MPa or higher, and the temperature is 40° C. or higher, to bring the CO2 into a subcritical state or a supercritical state, and a synthesis step for reacting the water in the moisture with the subcritical or supercritical CO2 in the storage site to synthesize hydrocarbon. The storage site is preferably a site from 800 m to 1200 m below ground. The pressure of the storage site is preferably 8 MPa or higher.
Claims6
A method for producing a hydrocarbon comprising:
- introducing catalytic particles comprising a catalytic metal and CO2 into an underground storage site where moisture is present, the pressure is 5 MPa or higher, and the temperature is 40° C. or higher, thereby bringing CO2 into a subcritical or supercritical state;
- and
- reacting water in the moisture and CO2 in the subcritical or supercritical state at the storage site to synthesize the hydrocarbon.
Dependencies are inferred from the claim text.