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US 2015/0148221 A1Published application
Catalyst materials useful for sour gas shift reactions and methods for using them
AssigneeClariant GmbH
InventorsJustin X. Wang, William M. Faris, Yeping Cai
Life of this patent
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Abstract
The disclosure provides molybdenum and/or tungsten containing catalyst materials useful for the sour gas shift reactions and methods for using such catalyst materials, for example, for converting carbon monoxide and steam to carbon dioxide and hydrogen.
Claims29
A catalyst material comprising:
- a carrier material;
- and
- a catalytically-active molybdenum compound, a catalytically-active tungsten compound, or a combination thereof, disposed on the carrier material, present in the range of about 1 weight % to about 10 weight % based on the total weight of the catalyst material;
- wherein any additional catalytically-active metal compounds that are present are present in a total amount less than about 1 weight % based on the total weight of the catalyst material;
- wherein the amount of any catalytically-active molybdenum compound is calculated as MoO3, wherein the amount of any catalytically-active tungsten compound is calculated as WO3, and wherein the amounts of any additional catalytically-active metal compounds are calculated as oxide;
- wherein “catalytically-active” refers to catalytic activity in the sour gas shift reaction;
- and
- wherein the catalyst material is in sulfided form.
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A method for converting carbon monoxide and steam to carbon dioxide and hydrogen, the method comprising reacting a carbon monoxide-containing feed gas with steam in contact with a catalyst material comprising
- a carrier material;
- and
- a catalytically-active molybdenum compound, a catalytically-active tungsten compound, or a combination thereof, disposed on the carrier material, present in the range of about 1 weight % to about 10 weight % based on the total weight of the catalyst material;
- wherein the amount of any catalytically-active molybdenum compound is calculated as MoO3, wherein the amount of any catalytically-active tungsten compound is calculated as WO3, and wherein the amounts of any additional catalytically-active metal compounds are calculated as oxide;
- wherein “catalytically-active” refers to catalytic activity in the sour gas shift reaction;
- and
- wherein the catalyst material is in sulfided form,
- wherein the reaction is performed at a set of reaction conditions, and wherein reaction is performed at a conversion that is less than 70% of the equilibrium conversion level under the reaction conditions.
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Dependencies are inferred from the claim text.