US 12,257,547 B2
Direct air capture system
Christer Hjalmarsson, Finspong (SE); Peter Jaksch, Norrköping (SE); Oscar Svensson, Linköping (SE); and Janos Szijarto, Finspong (SE)
Assigned to Siemens Energy Global GmbH & Co. KG, Bayern (DE)
Appl. No. 18/728,880
Filed by Siemens Energy Global GmbH & Co. KG, Bayern (DE)
PCT Filed Jan. 20, 2023, PCT No. PCT/EP2023/051302
§ 371(c)(1), (2) Date Jul. 14, 2024,
PCT Pub. No. WO2023/144018, PCT Pub. Date Aug. 3, 2023.
Claims priority of application No. 22153483 (EP), filed on Jan. 26, 2022.
Prior Publication US 2025/0001357 A1, Jan. 2, 2025
Int. Cl. B01D 53/62 (2006.01); B01D 53/82 (2006.01); B01D 53/96 (2006.01)
CPC B01D 53/62 (2013.01) [B01D 53/82 (2013.01); B01D 53/96 (2013.01); B01D 2253/202 (2013.01); B01D 2253/25 (2013.01); B01D 2257/504 (2013.01); B01D 2258/06 (2013.01); B01D 2259/4009 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A direct air capture system, comprising:
a frame arranged to define a first adsorption unit and a second adsorption unit arranged around a central axis;
a first adsorption cell disposed in the first adsorption unit and a second adsorption cell disposed in the second adsorption unit, the first adsorption cell and the second adsorption cell each including a first opening and a second opening;
a hub rotatably coupled to the frame for rotation around the central axis;
an upper arm coupled to the hub for co-rotation around the central axis;
a lower arm coupled to the hub for co-rotation around the central axis;
an upper lid coupled to the upper arm and movable between an open position, in which the openings of the adsorption cells are uncovered by the upper lid to allow a flow of air through the adsorption cells, and a closed position, in which the openings of the adsorption cells are covered by the upper lid to prevent a flow of air through the adsorption cells;
a lower lid coupled to the lower arm and movable between an open position, in which the openings of the adsorption cells are uncovered by the lower lid to allow a flow of air through the adsorption cells, and a closed position, in which the openings of the adsorption cells are covered by the lower lid to prevent a flow of air through the adsorption cells, and
a control unit operable to move the upper arm and the lower arm to the closed position in response to operation in a desorption mode, wherein the upper arm and the lower arm are movable so that the upper lid and lower lid are positioned concentric with the first opening and the second opening of the same absorption cell.
 
12. A method for operation of the direct air capture system according to claim 1, wherein
the upper lid is moved between the open position, in which the openings of the adsorption cells are uncovered by the upper lid to allow a flow of air through the adsorption cells, and the closed position, in which the openings of the adsorption cells are covered by the upper lid to prevent a flow of air through the adsorption cells;
the lower lid is moved between the open position, in which the openings of the adsorption cells are uncovered by the lower lid to allow a flow of air through the adsorption cells, and the closed position, in which the openings of the adsorption cells are covered by the lower lid to prevent a flow of air through the adsorption cells, and
the upper arm and the lower arm are moved to the closed position in response to operation in a desorption mode, wherein the upper arm and the lower arm are moved so that the upper lid and lower lid are positioned concentric with the first opening and the second opening of the same absorption cell.