Zinc(II) and gallium(III) catalysts for olefin reactions
AssigneePurdue Research Foundation
InventorsJeffrey T. Miller, Nicole Libretto, Christopher Russell, Matthew A. Conrad
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Abstract
Oligomerization catalyst and method for oligomerization using the catalyst. The catalyst comprises a single Zn(II) or Ga(III) metal ion center directly bonded to a support through a shared oxygen atom, the catalyst having at least one M-O bond which forms an active site for oligomerization. The method includes reacting one or more C2 to C12 olefins with the oligomerization catalyst at a temperature of about 200° C. or higher to provide an oligomer product comprising C4 to C26 olefins.
Claims20
A method for making light hydrocarbon oligomers, comprising:
- contacting one or more C2 to C12 olefins with a supported gallium catalyst;
- and
- oligomerizing the one or more C2 to C12 olefins in the presence of the supported gallium catalyst to form an oligomer product comprising one or more olefins having C4 to C26 carbon atoms,
- wherein the supported gallium catalyst comprises a single Ga(III) metal ion center directly bonded to a support through a shared oxygen atom, and the gallium is present in an amount ranging from about 0.1 wt % to about 20 wt %, based on the total weight of the catalyst.
A method for making light hydrocarbon oligomers, comprising:
- contacting one or more C2 to C12 olefins with a supported gallium catalyst;
- and
- oligomerizing the one or more C2 to C12 olefins in the presence of the supported gallium catalyst to provide an oligomer product comprising one or more olefins having C4 to C26 carbon atoms, wherein the supported gallium catalyst comprises:
- a support;
- and
- at least one Ga(III) metal ion surrounded by four oxygen atoms, wherein:
- the at least one Ga(III) metal ion is directly bonded to the support through a shared oxygen atom to form at least one Ga(III)—O bond,
- the gallium metal ion center of the at least one Ga(III)—O bond has a +3 oxidation state at the reaction conditions, and
- the supported gallium catalyst does not have Ga—O—Ga bonds.
A method for making light hydrocarbon oligomers, comprising:
- oligomerizing one or more C2 to C12 olefins in the presence of a catalyst at oligomerization conditions comprising a temperature of about 200° C. to about 500° C. and a pressure of about 1 bar to about 68.9 bar to provide an oligomer product one or more olefins having C4 to C26 carbon atoms, wherein the catalyst comprises a gallium containing compound and a support comprising at least one oxygen atom, wherein:
- at least one Ga(III) metal ion is surrounded by four oxygen atoms,
- the at least one Ga(III) metal ion is directly bonded to the support through a shared oxygen atom to form at least one Ga(III)—O bond,
- the gallium metal ion center of the at least one Ga(III)—O bond has a +3 oxidation state at the reaction conditions, and
- the catalyst does not have Ga—O—Ga bonds.
Dependencies are inferred from the claim text.