公开(公告)号：US20240058743A1

公开(公告)日：2024-02-22

申请号：US18449885

申请日：2023-08-15

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

Inventor： Kevin B. DALY ,  Rodrigo F. BLANCO GUTIERREZ ,  Justin A. FEDERICI ,  Micaela TABORGA CLAURE

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.