US 11,141,694 B2Granted

System and process of capturing carbon dioxide from flue gases

AssigneeCarbon Clean Solutions Limited

InventorsPrateek Bumb, James Jonathan Hall, Ausula Ramesh Kumar, Shailesh Lohare, Richard Mather

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Abstract

A system and a process for capturing Carbon Dioxide (CO2) from flue gases are disclosed. The process comprises feeding a flue gas comprising CO2 to at least one Rotary Packed Bed (RPB) absorber rotating circularly. A solvent may be provided through an inner radius of the RPB absorber. The solvent may move towards an outer radius of the RPB absorber. The solvent may react with the flue gas in a counter-current flow. The process further includes passing the flue gas through at least one of a water wash and an acid wash to remove traces of the solvent present in the flue gas. Finally, the solvent reacted with the CO2 may be thermally regenerated for re-utilizing the solvent back in the process.

Claims21

Dependent claims

A process of capturing Carbon Dioxide (CO2) from flue gases, the process comprising the steps of:

(a) providing a carbon capture solvent;
(b) introducing the carbon capture solvent into a Rotary Packed Bed (RPB) absorber and a Rotary Packed Bed (RPB) stripper;
(c) applying steam to a reboiler;
(d) bringing the carbon capture solvent in the Rotary Packed Bed (RPB) stripper to a desired pressure;
(e) pumping the carbon capture solvent around the Rotary Packed Bed (RPB) absorber and the Rotary Packed Bed (RPB) stripper;
(f) introducing flue gas into the Rotary Packed Bed (RPB) absorber;
(g) monitoring production of Carbon Dioxide (CO2) from the Rotary Packed Bed (RPB) stripper;
(h) starting a Rotary Packed Bed (RPB) O2 eliminator;
or, starting a conventional packed bed O2 eliminator;
(i) stopping the flow of flue gas to the Rotary Packed Bed (RPB) absorber;
(j) monitoring production of Carbon Dioxide (CO2) from the Rotary Packed Bed (RPB) stripper until Carbon Dioxide (CO2) production has stopped;
(k) stopping supply of steam to the reboiler;
(l) stopping circulation of the carbon capture solvent;
(m) stopping rotation of the Rotary Packed Bed (RPB) stripper, absorber, and O2 eliminator.

11 more elements

Dependencies are inferred from the claim text.