Method for reduced methanation
AssigneePrecision Combustion, Inc.
InventorMarco J. Castaldi
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Abstract
The invention disclosed is a method for the reduction of carbon monoxide to carbon dioxide in a gas stream comprising carbon monoxide, hydrogen and water vapor, wherein the carbon monoxide and hydrogen have a mole ratio greater than 5:1, with substantially reduced methanation. The invention utilizes a reactor having at least one channel having a catalyst positioned thereon and a flow rate of the gas stream over the catalyst such that a boundary layer having a thickness less than a maximum thickness boundary is created.
Claims14
A method for the conversion of carbon monoxide to carbon dioxide in the presence of hydrogen with reduced methanation comprising the steps of:
- providing a catalytic reactor having at least one channel defined at least in part by a catalytic surface suitable for supporting a water gas shift reaction;
- and
- presenting a gas stream at a known flow rate and inlet temperature to said at least one channel so that a boundary layer formed thereby relative to said catalytic surface defines a thickness that is less than the thickness of a fully-developed boundary layer over said catalytic surface, the hydrogen mole concentration being greater than or equal to five (5) times the carbon monoxide mole concentration;
- and
- generating a reaction such that oxidation of said gas stream occurs preferentially converting said CO to CO2.
Dependencies are inferred from the claim text.