US 12,357,946 B2
Direct capture of carbon dioxide
Adam Goff, Durham, NC (US); Damian Beauchamp, Hillsborough, NC (US); Jeremy Eron Fetvedt, Raleigh, NC (US); Miles R. Palmer, Durham, NC (US); Xijia Lu, Durham, NC (US); and Daniel Rathbone, Durham, NC (US)
Assigned to 8 Rivers Capital, LLC, Durham, NC (US)
Filed by 8 Rivers Capital, LLC, Durham, NC (US)
Filed on Oct. 15, 2024, as Appl. No. 18/916,589.
Application 18/916,589 is a division of application No. 17/781,943, granted, now 12,172,127, previously published as PCT/IB2020/061455, filed on Dec. 3, 2020.
Claims priority of provisional application 62/942,902, filed on Dec. 3, 2019.
Prior Publication US 2025/0032979 A1, Jan. 30, 2025
Int. Cl. B01D 53/62 (2006.01); B01D 53/82 (2006.01); B01D 53/96 (2006.01); B01J 20/04 (2006.01); B01J 20/28 (2006.01); B01J 20/32 (2006.01); B01J 20/34 (2006.01)
CPC B01D 53/82 (2013.01) [B01D 53/62 (2013.01); B01D 53/96 (2013.01); B01J 20/041 (2013.01); B01J 20/28033 (2013.01); B01J 20/3236 (2013.01); B01J 20/3297 (2013.01); B01J 20/3433 (2013.01); B01J 20/3483 (2013.01); B01D 2251/404 (2013.01); B01D 2251/604 (2013.01); B01D 2257/504 (2013.01); B01D 2258/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A system for direct air capture of carbon dioxide, the system comprising:
a coating system configured for application of a liquid, calcium sorbent material on a substrate that is configured as a sheet to form a coating layer of the calcium sorbent material across at least a portion of a surface of the substrate that is configured as a sheet;
a storage unit configured for positioning of the substrate for a time wherein the substrate is in contact with air such that carbon dioxide in the air reacts with the calcium sorbent material to form carbonated calcium sorbent material; and
a collection unit configured for removal and collection of the carbonated calcium sorbent material from the substrate.