Catalytic compositions for the oxidation of substrates
AssigneesMassachusetts Institute of Technology, ExxonMobil Research and Engineering Company
InventorsYuriy Román-Leshkov, Randall J. Meyer, Pedro M. Serna Merino, Mark Sullivan, Kimberly Dinh
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Abstract
Catalytic compositions and sequential catalytic methods are generally described. in some embodiments, a composition comprises a first catalyst comprising a Cu-modified zeolite, and a second catalyst capable of a coupling reaction between (a) an intermediate resulting from a reaction of a reactant at the first catalyst, and (b) a co-reagent, wherein a rate of diffusion of the co-reagent within one or more cages and/or pores of the first catalyst is lower than a rate of diffusion of the intermediate within the one or more cages and/or pores of the first catalyst.
Claims24
A composition, comprising:
- a first catalyst comprising a Cu-modified zeolite;
- and
- a second catalyst capable of a coupling reaction between (a) an intermediate resulting from a reaction of a reactant at the first catalyst, and (b) a co-reagent, wherein a rate of diffusion of the co-reagent within one or more cages and/or pores of the first catalyst is lower than a rate of diffusion of the intermediate within the one or more cages and/or pores of the first catalyst.
A composition, comprising:
- a first catalyst comprising a Cu-modified zeolite;
- and
- a second catalyst capable of a coupling reaction, wherein the coupling reaction is alkylation and/or etherification.
A method, comprising:
- exposing a reactant to a first catalyst comprising a Cu-modified zeolite, thereby oxidizing the reactant to provide an intermediate;
- and
- exposing the intermediate and a co-reagent to a second catalyst, thereby reacting the co-reagent with the intermediate to provide a product.
(canceled)
-40. (canceled)
A composition, comprising:
- a first catalyst comprising a Cu-modified zeolite;
- and
- a second catalyst capable of a coupling reaction between (a) an intermediate resulting from a reaction of a reactant at the first catalyst, and (b) a co-reagent, wherein a rate of diffusion of the co-reagent relative to the first catalyst is lower than a rate of diffusion of the intermediate relative to the first catalyst.
(canceled)
Dependencies are inferred from the claim text.