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US 9,427,722 B2Granted
Metal-organic frameworks for oxygen storage and air separation
AssigneeNuMat Technologies, Inc.
InventorsMitchell Hugh Weston, Patrick Fuller, Paul Wai-Man Siu
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Abstract
Adsorption systems providing a capacity of at least 200 g/L for oxygen-containing mixtures, or an oxygen-nitrogen selectivity of at least 1.4:1 or at least 1:2 with an adsorbed capacity of at least 0.6 mmol/g at 4 bar and 22° C.
Claims20
A method of using a metal-organic framework (MOF) comprising a coordination product of at least one metal ion and at least one multidentate organic ligand, comprising:
- loading an adsorption vessel with MOF;
- charging the MOF with oxygen gas or oxygen-containing gaseous mixtures;
- and
- storing the oxygen gas or oxygen-containing gaseous mixtures in the MOF,
- wherein the MOF provides an oxygen capacity of at least 200 g/L at 140 bar and 22° C.
2 more elements
A method of using a metal-organic framework (MOF) comprising coordination product of at least one metal ion and at least one multidentate organic ligand, comprising:
- loading an adsorption vessel with MOF, charging said vessel with a mixed-component air stream at high pressure and discharging the air stream from said vessel at a lower pressure, wherein the MOF provides an oxygen-nitrogen selectivity of at least 1.4:1 or at least 1:2 at 4 bar at 22° C.
Dependencies are inferred from the claim text.