Catalyst arrangement
AssigneeJohnson Matthey Public Limited Company
InventorPeter William Farnell
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Abstract
A catalyst arrangement disposed within a vertical reaction tube includes a structured catalyst within an upper part of the reaction tube, a particulate catalyst beneath the structured catalyst in a lower part of the reaction tube, and a catalyst support device located between the structured catalyst and the particulate catalyst, wherein the catalyst support device includes a cylindrical body having a first end adapted for connection to the structured catalyst, and a second end, and the cylindrical body has a diameter 70-90% of the internal diameter of the tube and a length/diameter in the range 0.5-2.5.
Claims28
A reactor system comprising a catalyst arrangement disposed within a vertical reaction tube, said arrangement comprising:
- a structured catalyst (52, 54) disposed within an upper part of the reaction tube,
- a particulate catalyst (56) disposed beneath said structured catalyst in a lower part of said reaction tube, and
- a catalyst support device (40) located between the structured catalyst and the particulate catalyst, wherein the catalyst support device comprises a cylindrical body (72) located centrally within the vertical reaction tube, the cylindrical body having a first end connected to the structured catalyst, and a second end (70), wherein the cylindrical body has a diameter of 70-90% of the internal diameter of the tube and a length/diameter in the range of 0.5-2.5.
A process for performing a reaction in a vertical reaction tube comprising the steps of:
- (i) passing a feed gas mixture through the reaction tube disposed within a reactor, and
- (ii) recovering a reacted gas mixture from the reaction tube, wherein a catalyst arrangement is disposed within the reaction tube, said arrangement comprising:
- a structured catalyst within an upper part of the reaction tube,
- a particulate catalyst beneath said structured catalyst in a lower part of said reaction tube, and
- a catalyst support device located between the structured catalyst and the particulate catalyst, wherein the catalyst support device comprises a cylindrical body located centrally within the tube, having a first end connected to the structured catalyst and a second end, wherein the cylindrical body has a diameter of 70-90% of the internal diameter of the tube and a length/diameter in the range of 0.5-2.5.
Dependencies are inferred from the claim text.