# US 11,439,944 B2 · Metal-organic materials for CO2 adsorption

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- Number: US 11,439,944 B2
- Document ID: US11439944B2
- Status: Granted
- Kind: B2
- Application number: 16/584,130
- Filed: 2019-09-26
- Published: 2020-04-16
- Granted: 2022-09-13
- Earliest claimed: 2012-08-10
- Assignees: University of South Florida; King Abdullah University of Science and Technology
- Applicants: University of South Florida; King Abdullah University of Science and Technology
- Inventors: Mohamed Eddaoudi; Michael J. Zaworotko; Patrick Nugent; Stephen Burd; Ryan Luebke; Youssef Belmabkhout; Osama Shekhah
- Web page: https://patentgrep.com/patent/US11439944B2

## CPC

- B01D 53/04: with stationary adsorbents {(B01D53/025 takes precedence)}
- B01D 53/02: by adsorption, e.g. preparative gas chromatography {(solid sorbent compositions B01J20/00, preparation of inorganic compounds or elements C01)}
- 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 20/28061: {being in the range 100-500 m2/g}
- B01J 20/28064: {being in the range 500-1000 m2/g}
- B01J 20/2808: {being less than 2 nm, i.e. micropores or nanopores}
- B01D 2253/204: Metal organic frameworks (MOF's)
- B01D 2253/306: Surface area, e.g. BET-specific surface
- B01D 2253/308: Pore size
- B01D 2253/311: Porosity, e.g. pore volume
- B01D 2256/10: Nitrogen
- B01D 2256/16: Hydrogen
- B01D 2256/245: Methane
- B01D 2257/504: Carbon dioxide
- B01D 2258/0283: Flue gases
- B01D 2259/4575: in aeroplanes or space ships
- 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)
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS

## Abstract

Embodiments of the present disclosure provide for metal-organic materials (MOMs), systems that exhibit permanent porosity and using hydrophobic MOMs to separate components in a gas, methods of separating CO2 from a gas, and the like.

## Claims

### Claim 1

A system for capturing CO2 in a gas, comprising:
a first structure including a metal-organic material (MOM), wherein the MOM includes at least one of an inorganic linker or an inorganic pillar, wherein the gas includes CO2 and water vapor, wherein the MOM has a greater relative affinity for CO2 over a water; and
a second structure for introducing the gas to the first structure, wherein the first structure is configured to remove CO2 from the gas to form a modified gas, wherein the second structure is configured to flow the modified gas away from the first structure so the CO2 is captured in the first structure to the exclusion of the modified gas.

### Claim 2 (depends on 1)

The system of claim 1, wherein the gas includes at least one of the following gases: N2, H2, and CH4, wherein the MOM has a greater relative affinity for CO2 over each one of N2, H2, and CH4.

### Claim 3 (depends on 1)

The system of claim 1, wherein the MOM is [Cu(pyr)2(SiF6)]n, wherein n is 1 to 100,000,000, and wherein the MOM has a pore size of about 3.35 Å.

### Claim 4 (depends on 1)

The system of claim 1, wherein the MOM is a hydrophobic MOM.

### Claim 5 (depends on 1)

The system of claim 1, wherein the MOM is selected from the group consisting of: [Cu(4,4′-dipyridylacetylene)2(SiF6)]n, where n is 1 to 100,000,000; a pair of interpenetrated nets of [Cu(4,4′-dipyridylacetylene)2(SiF6)]n; and [Zn(pyr)2(SiF6)]n, wherein n is 1 to 100,000,000.

### Claim 6 (depends on 1)

The system of claim 1, wherein the MOM has a primitive cubic topology.

### Claim 7 (depends on 1)

The system of claim 1, wherein the gas includes CO2 at a concentration of 5% or less.