Catalysts and methods including steam reforming
AssigneeMassachusetts Institute of Technology
InventorsJackie Y. Ying, Hong He
Life of this patent
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Abstract
The present invention generally relates to catalyst compositions comprising aluminates, such as nickel aluminates, and related methods. In some embodiments, the catalyst composition may be advantageously modified, for example, by the addition of one or more metal additives to further enhance catalyst performance. Such modifications can provide a more effective catalyst and can reduce the level of coking during catalytic processes. Some embodiments of the invention may provide effective catalyst compositions for steam reforming. In some cases, the catalyst composition may be utilized under relatively mild reaction conditions.
Claims28
A catalyst system for steam reforming, comprising:
- a reaction chamber constructed and arranged to be exposed to a source of reactant gas, the reaction chamber comprising a catalyst composition for catalyzing a reaction involving the reactant gas,
- the catalyst composition comprising a nickel aluminate material and a metal additive, wherein the ratio of nickel to metal additive is greater than 2.5:1, by weight.
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A catalyst system for steam reforming, comprising:
- a reaction chamber constructed and arranged to be exposed to a source of reactant gas, the reaction chamber comprising a catalyst composition for catalyzing a reaction involving the reactant gas,
- the catalyst composition comprising a nickel aluminate material and a metal additive, wherein the molar ratio of nickel to aluminum is greater than 0.96:1.
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A method comprising:
- contacting a reactant gas with a catalyst composition comprising a nickel aluminate material, wherein the contacting takes place at less than 500° C.;
- and
- allowing the reactant gas to undergo a chemical reaction with the catalytic material to produce a desired product,
- wherein at least 75.0% of the reactant gas undergoes the chemical reaction.
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A method comprising:
- contacting a reactant gas with a catalyst composition comprising a nickel aluminate material and a metal additive, wherein the ratio of nickel to metal additive is greater than 2.5:1, by weight, or, wherein the molar ratio of nickel to aluminum is greater than 0.96:1;
- and
- allowing the reactant gas to undergo a chemical reaction with the catalytic material to produce a desired product.
-84. (canceled)
Dependencies are inferred from the claim text.