System and methods for carbon dioxide capture and recovery
AssigneeEnviro Ambient Corporation
InventorsAndrew Verdouw, Sanjeev Jolly
Life of this patent
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Abstract
Disclosed are methods and systems for capturing carbon dioxide (CO2) from an input gas stream (e.g., flue gas from a combustion process). In particular, the system includes a CO2 absorption module that directs supersaturated CO2 process water to a CO2 recovery process. The CO2 recovery process includes a sparging seal vessel, followed by an agitator, followed by a stripper unit, followed by an outgassing tank, and lastly a membrane separator, configured to outgas CO2 from the supersaturated process water and direct the gaseous CO2 into a CO2 collection header.
Claims27
A system comprising:
- a CO2 absorber module comprising:
- an intake configured to receive an input gas;
- a heat exchanger coupled to the intake;
- a fogging array coupled to the heat exchanger, wherein the fogging array is configured to spray a process fluid via droplets to thereby capture CO2 from the input gas;
- a packing section coupled to the fogging array;
- a mist eliminator coupled to the packing section;
- an exhaust coupled to the mist eliminator, the exhaust configured to release an exhaust gas;
- a sparging seal vessel fluidly coupled to the fogging array, the packing section, and the mist eliminator;
- an agitator fluidly coupled to the sparging seal vessel;
- a stripper unit fluidly coupled to the agitator;
- an outgassing tank fluidly coupled to the stripper unit and thermally coupled to at least a portion of the heat exchanger;
- a membrane separator fluidly coupled to the outgassing tank and the exhaust;
- and
- a CO2 header coupled to the sparging seal vessel, agitator, stripper unit, outgassing tank, and membrane separator.
A method of recovering CO2 from a process fluid, the method comprising:
- receiving an input gas at an intake;
- extracting thermal energy from the input gas via a heat exchanger;
- spraying droplets of a process fluid through the input gas at a fogging array to thereby capture CO2 from the input gas in the process fluid;
- sparging the process fluid having captured CO2 therein at a sparging seal vessel to thereby release a first portion of captured CO2 and directing the first portion into a CO2 header;
- after sparging, agitating the process fluid at an agitator to thereby release a second portion of captured CO2 and directing the second portion into the CO2 header;
- after agitating, stripping the process fluid at a stripping unit to thereby release a third portion of captured CO2 and directing the third portion into the CO2 header;
- after stripping, mixing and heating the process fluid at an outgassing tank to thereby release a fourth portion of captured CO2 and directing the fourth portion into the CO2 header, wherein heating is performed using at least a portion of the extracted thermal energy;
- and
- after mixing and heating, separating captured CO2 from the process fluid at a membrane separator to thereby release a fifth portion of captured CO2 and directing the fifth portion into the CO2 header.
Dependencies are inferred from the claim text.