Reversible ethylene oxide capture in porous frameworks
AssigneesThe Regents of the University of California, BASF SE
InventorsOmar M. Yaghi, David Kyle Britt, Alexander U. Czaja
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Abstract
This disclosure relates to porous frameworks for ethylene oxide separation and recovery.
Claims16
A method of separating ethylene oxide in a fluid or gas mixture comprising contacting the fluid or gas mixture with a porous metal organic framework comprising coordinatively unsaturated metal sites that can form a bond with ethylene oxide without causing ethylene oxide to undergo ring opening, wherein the ethylene oxide is absorbed or adsorbed to the porous metal organic framework, and wherein the ethylene oxide can be recovered from the porous framework.
A method of separating ethylene oxide in a mixed fluid or gas comprising contacting a device comprising a porous framework having coordinatively unsaturated metal sites that can form a bond with ethylene oxide without causing ethylene oxide to undergo ring opening, wherein the porous framework adsorbs or absorbs ethylene oxide, and wherein the ethylene oxide can be recovered from the porous framework with the mixed fluid or gas, wherein the ethylene oxide is absorbed or adsorbed to the porous metal organic framework thereby separating the ethylene oxide from the mixed fluid or gas.
A filtration system comprising a mixed fluid or gas containing ethylene oxide, a gas or fluid inlet and an outlet;
- a metal organic framework (MOF) thereof disposed between the inlet and the outlet, wherein the MOF comprises coordinatively unsaturated metal sites that can form a bond with ethylene oxide without causing ethylene oxide to undergo ring opening, wherein the mixed fluid or gas comprising ethylene oxide enters the inlet and contacts the MOF as it flows towards the outlet, and wherein the fluid or gas is substantially depleted of ethylene oxide at the outlet.
Dependencies are inferred from the claim text.