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1. WO2022109746 - DIRECT AIR CAPTURE AND CONCENTRATION OF CO2 USING ADSORBENTS

Publication Number WO/2022/109746
Publication Date 02.06.2022
International Application No. PCT/CA2021/051696
International Filing Date 26.11.2021
IPC
B01D 53/62 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34Chemical or biological purification of waste gases
46Removing components of defined structure
62Carbon oxides
B01D 53/02 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
02by adsorption, e.g. preparative gas chromatography
B01D 53/047 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
02by adsorption, e.g. preparative gas chromatography
04with stationary adsorbents
047Pressure swing adsorption
B01D 53/26 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
26Drying gases or vapours
CPC
B01D 2257/504
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2257Components to be removed
50Carbon oxides
504Carbon dioxide
B01D 2258/06
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2258Sources of waste gases
06Polluted air
B01D 53/0462
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
02by adsorption, e.g. preparative gas chromatography
04with stationary adsorbents
0462Temperature swing adsorption
B01D 53/047
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
02by adsorption, e.g. preparative gas chromatography
04with stationary adsorbents
047Pressure swing adsorption
B01D 53/261
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
26Drying gases or vapours
261by adsorption
Applicants
  • TERRAFIXING INC. [CA]/[CA]
Inventors
  • WILSON, Sean Michael Wynn
Agents
  • CAMENZIND, Alexander
  • SCHROEDER, Hans
  • CREBER, Anthony G.
  • WILKIE, Jennifer L.
Priority Data
63/118,92629.11.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) DIRECT AIR CAPTURE AND CONCENTRATION OF CO2 USING ADSORBENTS
(FR) CAPTURE DIRECTE D'AIR ET CONCENTRATION DE CO2 UTILISANT DES ADSORBANTS
Abstract
(EN) This disclosure provides an apparatus and method for capturing CO2 from air, particularly from air having a temperature equal to or less than 0oC, and/or a humidity less than 5g of H2O per kg of air, using adsorbents. The apparatus includes an enclosure having an internal volume that contains a CO2 adsorbent bed, and a vacuum source, an input air source, and heater coupled to the enclosure such that the contents, pressure, and temperature of the interior volume of the enclosure can be controlled. Adsorbents for capturing CO2 comprise a zeolite, metal organic framework, covalent organic framework, silica, or alumina. The method provides for flowing input air into an interior volume of an enclosure containing CO2 adsorbent material, heating the CO2 adsorbent material to release the trapped CO2 and collecting it, and re-equilibrating the pressure of the enclosure.
(FR) La présente divulgation concerne un dispositif et un procédé de capture de CO2 à partir de l'air, en particulier à partir d'air ayant une température égale ou inférieure à 0 °C, et/ou une humidité inférieure à 5 g de H2O par kg d'air, à l'aide d'adsorbants. Le dispositif comprend une enceinte ayant un volume interne qui contient un lit adsorbant de CO2, et une source de vide, une source d'air d'entrée, et un élément chauffant couplé à l'enceinte de telle sorte que la teneur, la pression et la température du volume intérieur de l'enceinte peuvent être commandées. Les adsorbants pour capturer le CO2 comprennent une zéolite, une structure organométallique, une structure organique covalente, de la silice ou de l'alumine. Le procédé permet l'écoulement d'air d'entrée dans un volume intérieur d'une enceinte contenant un matériau adsorbant de CO2, le chauffage du matériau adsorbant de CO2 pour libérer le CO2 piégé et la collecte, et le rééquilibrage de la pression de l'enceinte.
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