Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By membrane – selective septum – or coalescer
Reexamination Certificate
2004-04-12
2008-08-12
Nguyen, Tam M (Department: 1797)
Chemistry of hydrocarbon compounds
Purification, separation, or recovery
By membrane, selective septum, or coalescer
C585S833000, C585S533000, C585S311000
Reexamination Certificate
active
07411108
ABSTRACT:
A method for removing conjugated olefins from a composition comprising contacting the composition with a Diels-Alder dienophile to convert conjugated olefins to a Diels-Alder adduct and arresting the Diels-Alder adduct. A method comprising confining a Diels-Alder dienophile to a first side of a selectively permeable barrier wherein the barrier is more permeable to conjugated olefins and less permeable to Diels-Alder dienophile and Diels-Alder adduct, and contacting a composition comprising mono-olefins and conjugated olefins with the Diels-Alder dienophile to form Diels-Alder adduct, wherein the contacting reduces the concentration of conjugated olefins in the composition. A method for removing conjugated olefins from a composition comprising bubbling the composition through a liquid comprising Diels-Alder dienophile to form a liquid comprising Diels-Alder adduct. A method for removing conjugated olefins from a non-solid composition comprising contacting the composition with a solid comprising Diels-Alder dienophile to form a solid comprising Diels-Alder adduct.
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Baralt Eduardo J.
Elomari Saleh A.
Herron Steven J.
Reynolds, Jr. Richard N.
Carroll Rodney B.
Chevron Phillips Chemical Company LP
Conley & Rose, P.C.
Nguyen Tam M
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