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公开(公告)号：US20250058270A1
公开(公告)日：2025-02-20
申请号：US18799121
申请日：2024-08-09
Inventor： Justin A. FEDERICI , Jayashree KALYANARAMAN , Eric R. SIMMERS , Eric B. SHEN , Clay R. SUTTON , Lisa S. BAUGH
Abstract: Systems and methods are provided for performing amine capture on a heated flue gas using multiple rotating packed beds. By integrating a series of rotating packed beds to perform cooling of the flue gas, removal of CO2 from the flue gas by contact with an aqueous amine, and washing of the gaseous effluent from CO2 removal step to remove any entrained amine, the equipment footprint and overall equipment volume required for CO2 capture can be significantly reduced. The integration of cooling, CO2 removal, and washing can be integrated into a series of packed beds in part by using different packing materials in the various packed beds.
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公开(公告)号：US20240058743A1
公开(公告)日：2024-02-22
申请号：US18449885
申请日：2023-08-15
IPC: B01D53/04
CPC classification number: B01D53/0462 , B01D2253/202 , B01D2257/504 , B01D2258/0283 , B01D2258/06 , B01D2259/40043 , B01D2259/4006 , B01D2259/4009 , B01D2259/41
Abstract: Systems and methods are provided for integrating direct air capture of carbon dioxide with capture of carbon dioxide from a point source. The systems and methods can include exposing an adsorbent to a low CO2 content gas flow (e.g., air) at conditions similar to ambient conditions to perform an initial amount of sorption of CO2. The initial sorption results in a partially loaded sorbent having a first sorbent loading. The partially loaded sorbent can then be exposed to a flue gas and/or other gas flow that contains a higher CO2 content. This allows a second sorption step to be performed using a higher CO2 content gas, resulting in an additionally loaded sorbent having a second (higher) sorbent loading. The sorbed CO2 can then be desorbed from the sorbent.
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