公开(公告)号：US20240157283A1

公开(公告)日：2024-05-16

申请号：US18504380

申请日：2023-11-08

Applicant: EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY

Inventor： Bennett D. MARSHALL ,  Simon C. WESTON ,  Aaron W. PETERS

IPC: B01D53/06

CPC classification number: B01D53/06 ,  B01D2256/10 ,  B01D2257/504 ,  B01D2259/4009 ,  B01D2259/404

Abstract: Systems and methods are provided for using a multi-stage capture process for capture of CO2 from air. A first or initial sorption process is used to sorb CO2 from air. After sorption from the air is complete, the desorption step of the initial stage is used to form a secondary CO2-containing stream that is passed into one or more additional sorption stages. This secondary CO2-containing stream can be at a concentration of roughly 1.0 vol % or more. Sorption of CO2 from the secondary CO2-containing stream is performed using a different contacting method, such as a contacting method that is higher efficiency. The second or later CO2 sorption stage can produce a CO2-containing output stream with a CO2 concentration of 80 vol % or more, or 90 vol % or more, or 95 vol % or more. This high purity output stream can then be sequestered and/or used for further processing.

公开(公告)号：US20230356140A1

公开(公告)日：2023-11-09

申请号：US18040316

申请日：2021-07-30

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Joseph Renaldo VELLA ,  Bennett D. MARSHALL ,  Chien-Chiang CHEN

IPC: B01D53/04 ,  C10L3/10

CPC classification number: B01D53/0462 ,  B01D53/0446 ,  C10L3/104 ,  C10L3/106 ,  B01D2257/504 ,  B01D2257/80 ,  B01D2256/245 ,  B01D2259/402 ,  B01D2259/4061 ,  B01D2259/4062 ,  B01D2253/108 ,  B01D2253/204

Abstract: Provided are apparatus and systems for performing a swing adsorption process. In particular, the method and system involves swing adsorption processes and systems designed to lessen the temperature, pressure and product stream composition fluctuations in the adsorption step of a swing adsorption process, particularly involving preparation of the adsorption bed unit using feed stream cooling in conjunction with splitting the cooled feed stream to the adsorption bed units during adsorption steps while staggering the timing of back-to-back adsorption steps in the swing adsorption process. The process may be utilized for swing adsorption processes, such as rapid cycle TSA and/or rapid cycle PSA, which are utilized to remove one or more contaminants from a gaseous feed stream.

公开(公告)号：US20240123395A1

公开(公告)日：2024-04-18

申请号：US18523318

申请日：2023-11-29

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Ananda Krishna NAGAVARAPU ,  Stephen WRIGHT ,  Bennett D. MARSHALL ,  Brett L. RYBERG

IPC: B01D53/047 ,  B01D53/02 ,  B01D53/04 ,  C10L3/10

CPC classification number: B01D53/0473 ,  B01D53/02 ,  B01D53/0438 ,  B01D53/0446 ,  B01D53/0462 ,  C10L3/104 ,  B01D2253/108 ,  B01D2253/204 ,  B01D2256/24 ,  B01D2256/245 ,  B01D2257/304 ,  B01D2257/504 ,  B01D2257/80 ,  B01D2259/40079 ,  B01D2259/40081 ,  B01D2259/4062 ,  C10L2200/0286 ,  C10L2290/542

Abstract: Provided are apparatus and systems for performing a swing adsorption process. This swing adsorption process may involve performing dampening for fluctuations in the streams conducted away from the adsorbent bed unit. The process may be utilized for swing adsorption processes, such as rapid cycle TSA and/or rapid cycle PSA, which are utilized to remove one or more contaminants from a gaseous feed stream.