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Metal-organic frameworks for Xe/Kr separation

Patent ·
OSTI ID:1149694

Metal-organic framework (MOF) materials are provided and are selectively adsorbent to xenon (Xe) over another noble gas such as krypton (Kr) and/or argon (Ar) as a result of having framework voids (pores) sized to this end. MOF materials having pores that are capable of accommodating a Xe atom but have a small enough pore size to receive no more than one Xe atom are desired to preferentially adsorb Xe over Kr in a multi-component (Xe--Kr mixture) adsorption method. The MOF material has 20% or more, preferably 40% or more, of the total pore volume in a pore size range of 0.45-0.75 nm which can selectively adsorb Xe over Kr in a multi-component Xe--Kr mixture over a pressure range of 0.01 to 1.0 MPa.

Research Organization:
Northwestern University, Evanston, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-03ER15457
Assignee:
Northwestern University (Evanston, IL)
Patent Number(s):
8,784,536
Application Number:
13/974,406
OSTI ID:
1149694
Country of Publication:
United States
Language:
English

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