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AssigneeJohnson Matthey PLC
InventorsDaniel Lee Cairns, Mileta Babovic, Terence James Fitzpatrick, Elizabeth Margaret Holt, Colin William Park, William Maurice Sengelow, Edmund Hugh Stitt
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A catalyst unit is described in the form of a cylinder having a length C and diameter D, which has two or more flutes running along its length, wherein said cylinder has domed ends of lengths A and B, such that (A+B+C)/D is in the range 0.50 to 2.00, and (A+B)/C is in the range 0.40 to 5.00. The catalyst may be used particularly in reactions where hydrogen is a reactant such as hydroprocessing, hydrogenation, water-gas shift reactions, methanation, hydrocarbon synthesis by the Fischer-Tropsch reaction, methanol synthesis and ammonia synthesis.
A catalyst unit in the form of a cylindrical pellet having a cylinder length C and diameter D, wherein the exterior surface of the unit has two or more flutes running along its length, said cylinder having domed ends of lengths A and B such that (A+B+C)/D is in the range 0.50 to 2.00, and (A+B)/C is in the range 0.40 to 5.00.
A method of making a catalyst unit in the form of a cylindrical pellet comprising the steps of (i) feeding a powdered material into a pelleting die, and (ii) compressing the powder to form a shaped unit, said die being shaped such that the catalyst unit is in the form of a cylindrical pellet having a cylinder length C and diameter D, wherein the exterior surface of the unit has two or more flutes running along its length, said cylinder having domed ends of lengths A and B such that (A+B+C)/D is in the range 0.50 to 2.00, and (A+B)/C is in the range 0.40 to 5.00.
A catalytic process comprising contacting a reactant mixture with a catalyst unit in the form of a cylindrical pellet having a cylinder length C and diameter D, wherein the exterior surface of the unit has two or more flutes running along its length, said cylinder having domed ends of lengths A and B such that (A+B+C)/D is in the range 0.50 to 2.00, and (A+B)/C is in the range 0.40 to 5.00, under conditions to effect a catalysed reaction.
Dependencies are inferred from the claim text.