US 12,491,469 B2
Screw conveyor adsorption moving bed with heat integration
Roman Alexandrovich Skachkov, Cambridge, MA (US); Shahnawaz Hossain Molla, Cambridge, MA (US); Davuluri Prahlada Rao, Hyderabad (IN); Sandeep Verma, Cambridge, MA (US); and Bruno Lecerf, Houston, TX (US)
Assigned to Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed by Schlumberger Technology Corporation, Sugar Land, TX (US)
Filed on Jul. 17, 2024, as Appl. No. 18/775,229.
Claims priority of provisional application 63/611,241, filed on Dec. 18, 2023.
Claims priority of provisional application 63/513,923, filed on Jul. 17, 2023.
Prior Publication US 2025/0025826 A1, Jan. 23, 2025
Int. Cl. B01D 53/02 (2006.01); B01D 53/06 (2006.01); B01D 53/62 (2006.01)
CPC B01D 53/06 (2013.01) [B01D 53/62 (2013.01); B01D 2253/10 (2013.01); B01D 2253/204 (2013.01); B01D 2257/504 (2013.01); B01D 2259/4009 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for removing carbon dioxide from gas, comprising:
exposing, within an outer container, adsorbent particles to a gas mixture that contains carbon dioxide (CO2);
using a screw conveyor in a cylinder that is inside the outer container, moving the adsorbent particles around a shaft towards a top opening of the cylinder;
passing a heated gas through a hollow part of the shaft of the cylinder to heat the adsorbent particles;
desorbing the CO2 from the adsorbent particles; and
ejecting the desorbed CO2 from the hollow part of the shaft.