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.
Claims20
A composition, comprising:
- a first catalyst comprising a Cu-modified zeolite, wherein the first catalyst is capable of oxidizing a reactant comprising an optionally substituted alkane;
- and
- a second catalyst comprising a solid acid catalyst, wherein the second catalyst is capable of an alkylation and/or etherification coupling reaction between:
- (a) an intermediate comprising an optionally substituted saturated alcohol resulting from an oxidation of the reactant at the first catalyst;
- and (b) a co-reagent comprising an optionally substituted aromatic, alcohol, and/or alkene, and
- wherein the first catalyst comprises a plurality of cages and/or pores having an average characteristic dimension less than or equal to 5 angstroms such that 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, and
- wherein the composition further comprises an oxidizing agent.
Dependencies are inferred from the claim text.