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MEMBRANE-MEDIATED EXTRACTION OF OLEFINS

United States Patent Application

20100030006
A1
View the Complete Application at the US Patent & Trademark Office
The present disclosure provides processes for the recovery of olefins from a mixture. Such processes include: (1) passing the mixture to a first surface of a porous membrane, wherein the porous membrane is in a first contactor; (2) passing a complexing composition to a second surface of the porous membrane in the first contactor, wherein the complexing composition includes a metal ion that is capable of reversibly binding the olefins; (3) extracting at least a portion of the olefins from the mixture; wherein extracting includes binding the olefins to the metal ion of the complexing composition; and wherein extracting produces a mixture depleted in olefins and a complexing composition enriched in olefins; and (4) inducing a release of the olefins from the complexing composition enriched in olefins. In some embodiments, the processes of the present disclosure can further include passing the complexing composition enriched in olefins to a second contactor; wherein the induction step occurs in the second contactor. In other embodiments, the processes of the present disclosure can further include passing the released olefins from the induction step to a third contactor. In additional embodiments, the processes of the present disclosure can also include recycling the complexing composition after the olefins are released in the induction step.
Schucker, Robert C. (The Woodlands, TX)
The Ionics Corporation (The Woodlands TX)
12/ 481,190
June 9, 2009
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH [0002] The United States Government has rights in this invention pursuant to Contract No. DE-FG02-05ER84262 between the United States Department of Energy and Translonics Corporation.