# US 10,765,989 B2 · Trace and low concentration CO2 removal methods and apparatus utilizing metal organic frameworks

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- Number: US 10,765,989 B2
- Document ID: US10765989B2
- Status: Granted
- Kind: B2
- Application number: 16/280,481
- Filed: 2019-02-20
- Published: 2019-06-13
- Granted: 2020-09-08
- Earliest claimed: 2014-09-02
- Assignees: King Abdullah University of Science and Technology
- Applicants: King Abdullah University of Science and Technology
- Inventors: Mohamed Eddaoudi; Youssef Belmabkhout; Osama Shekhah
- Web page: https://patentgrep.com/patent/US10765989B2

## CPC

- B01D 53/02: by adsorption, e.g. preparative gas chromatography {(solid sorbent compositions B01J20/00, preparation of inorganic compounds or elements C01)}
- A61M 16/22: Carbon dioxide-absorbing devices {; Other means for removing carbon dioxide}(cartridges with absorbing substances for respiratory apparatus A62B19/00)
- B01J 20/226: {Coordination polymers, e.g. metal-organic frameworks [MOF], zeolitic imidazolate frameworks [ZIF] (preparation of metal complexes containing carboxylic acid moieties C07C51/418; MOF's per se C07F)}
- B01J 20/28057: {Surface area, e.g. B.E.T specific surface area}
- B01J 20/28083: {being in the range 2-50 nm, i.e. mesopores}
- H01M 8/0668: Removal of carbon monoxide or carbon dioxide
- B01D 2253/204: Metal organic frameworks (MOF's)
- B01D 2257/504: Carbon dioxide
- B01D 2258/0283: Flue gases
- B01D 2258/06: Polluted air
- B01D 2259/4533: for medical purposes
- B01J 2220/62: In a cartridge
- Y02C 20/40: of CO2
- Y02E 60/50: Fuel cells
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02C: CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

Embodiments of the present disclosure describe a device for removing CO2 comprising a gas flow inlet, a housing including a SIFSIX-3-Cu metal-organic framework (MOF) composition for sorbing and/or desorbing CO2, and a gas flow outlet. Embodiments of the present disclosure describe an anesthetic system comprising one or more regeneratable cartridges for sorbing and/or desorbing CO2, wherein each of the one or more regeneratable cartridge includes a metal-organic framework composition, wherein at least one of the regeneratable cartridges includes a SIFSIX-3-Cu MOF. Embodiments of the present disclosure describe an alkaline fuel cell comprising a catalyst layer including a SIFSIX-3-Cu MOF composition for sorbing and/or desorbing CO2.

## Claims

### Claim 1

A device for removing CO2 from a gas, comprising:
a gas flow inlet;
a housing including a SIFSIX-3-Cu metal-organic framework (MOF) composition for sorbing and/or desorbing CO2; and
a gas flow outlet.

### Claim 2 (depends on 1)

The device of claim 1, wherein the housing further includes one or more SIFSIX-n-M MOF compositions, wherein n is at least 2 and M is a metal other than Cu.

### Claim 3 (depends on 2)

The device of claim 2, wherein the metal is selected from Zn, Co, Mn, Mo, Cr, Fe, Ca, Ba, Cs, Pb, Pt, Pd, Ru, Rh, and Cd.

### Claim 4 (depends on 2)

The device of claim 2, wherein n is 3.

### Claim 5 (depends on 2)

The device of claim 2, wherein at least one of the SIFSIX-n-M MOF compositions includes a bidentate organic ligand.

### Claim 6 (depends on 2)

The device of claim 2, where at least one of the SIFSIX-n-M MOF compositions includes a bidentate N-donor organic ligand.

### Claim 7 (depends on 6)

The device of claim 6, wherein the bidentate N-donor organic ligand includes a cyclic moiety.

### Claim 8 (depends on 2)

The device of claim 2, wherein at least one of the SIFSIX-n-M MOF compositions includes a pyrazine or dipryidilacetylene ligand.

### Claim 9 (depends on 2)

The device of claim 2, wherein at least one of the SIFSIX-n-M MOF compositions is a SIFSIX-3-Zn MOF.