Atmospheric carbon dioxide capture system
AssigneeRobert Bosch GmbH
InventorsYelena GORLIN, Daniil KITCHAEV, Claudio BALDIZZONE, Helmut SCHMIDT, John CHRISTENSEN
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Abstract
A direct air capture system to remove atmospheric carbon dioxide is provided. The system may include a solid carbon dioxide sorbent and a thermal regeneration module that cycle an exchange fluid. The exchange fluid may include an amine with an affinity for carbon dioxide such that it removes carbon dioxide from the solid sorbent. The exchange fluid may be heated such as with water vapor to remove carbon dioxide from the exchange fluid such that it can be recycled back to the solid sorbent.
Claims20
An atmospheric carbon dioxide capture system comprising:
- a solid CO2 sorbent arranged to receive CO2;
- a nitrogen-group-containing exchange fluid capable of regenerating the solid CO2 sorbent by removing CO2 from the solid CO2 sorbent to form a loaded exchange fluid;
- and
- a thermal regeneration module capable of regenerating the loaded exchange fluid by removing CO2 from the loaded exchange fluid, the solid CO2 sorbent and the thermal regeneration module being in fluid communication to recirculate the nitrogen-group-containing exchange fluid.
A method of capturing atmospheric carbon dioxide, the method comprising:
- i) saturating a solid CO2 sorbent with CO2;
- ii) flooding the solid CO2 sorbent with an exchange fluid to remove CO2 from the solid CO2 sorbent and bind the CO2 to one or more components of the exchange fluid to form a loaded exchange fluid;
- iii) transferring the loaded exchange fluid from the solid CO2 sorbent to a thermal regeneration module;
- and
- iv) heating the loaded exchange fluid in the regeneration module to regenerate the loaded exchange fluid by removing CO2 from the loaded exchange fluid.
A direct air capture system comprising:
- a sorbent compartment housing a solid CO2 sorbent with a first inlet to receive atmospheric air and a second inlet to receive an exchange fluid;
- a stripping column in fluid communication with the sorbent compartment to receive the exchange fluid from the sorbent compartment and introduce a heated regenerative fluid to the exchange fluid;
- and
- a condenser in fluid communication with the stripping column to receive the heated regenerative fluid.
Dependencies are inferred from the claim text.