Process for producing methane from carbon monoxide and steam
AssigneePhillips Petroleum Company
InventorsMarvin M. Johnson, Gerhard P. Nowack
Life of this patent
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Abstract
A catalyst consisting essentially of nickel, a promoter selected from the group consisting of barium and uranium and a calcium phosphate support having a Ca:P atomic ratio in the range of 1.4:1 to 2.3:1, is formed by impregnating a calcium phosphate gel with suitable compounds of nickel and either barium or uranium. The resulting catalysts are useful for reacting carbon monoxide and steam and in steam reforming processes for producing methane.
Claims7
A process for the conversion of a feed consisting essentially of carbon monoxide and steam to a gas containing methane and carbon dioxide which comprises contacting carbon monoxide and steam at an elevated temperature with a catalyst composition consisting essentially of nickel, a promoter selected from the group consisting of barium and uranium, combined oxygen and a calcium phosphate support having a Ca:P atomic ratio in the range of 1.4:1 to 2.3:1, wherein the components are present in approximate amounts as follows:
- ______________________________________ Calcium 5 to 35, Phosphorus 2 to 20, Nickel 10 to 50, and either Barium 1 to 20, or Uranium 2 to 40, ______________________________________
- all said amounts expressed in terms of weight percent, based upon the weight of the total catalyst.
Dependencies are inferred from the claim text.