Atmospheric carbon dioxide capture system

A direct air capture method comprising:

• sorbing atmospheric CO2 onto a solid sorbent contained in a compartment to form bound CO2;
• regenerating the solid sorbent by flooding the compartment with an exchange fluid to detach the bound CO2 from the solid sorbent and to form an exchange fluid-CO2 solution;
• utilizing the CO2 from the exchange fluid-CO2 solution in a chemical reactor by forming a product having the carbon atom from the CO2 via a chemical precipitation reaction;
• and
• regenerating the exchange fluid from the exchange fluid-CO2 solution in the chemical reactor,
• wherein at least a portion of the steps of utilizing the CO2 and regenerating the exchange fluid are performed simultaneously.

A direct air capture system comprising:

• a compartment housing a solid amine-functionalized CO2 sorbent to sorb atmospheric CO2;
• an exchange fluid including a chemical component with a preferential affinity towards CO2 to regenerate the solid amine-functionalized CO2 sorbent and bind the atmospheric CO2;
• a chemical reactor fluidly connected to the compartment, the chemical reactor being operable to catalyze a chemical reaction wherein the atmospheric CO2 is mineralized into a carbonate mineral;
• a conduit fluidly connected to the chemical reactor and the compartment, the conduit structured to separate the chemical component from the carbonate mineral and to provide the chemical component from the chemical reactor to the compartment.