| 摘要 |
A catalyst arrangement disposed within a vertical reaction tube (50) is described, said arrangement comprising a structured catalyst (52) within an upper part of the reaction tube, a particulate catalyst (56) beneath said structured catalyst (52) in a lower part of said reaction tube, and a catalyst support device located between the structured catalyst (52) and the particulate catalyst (56), wherein the catalyst support device comprises a cylindrical body (72) 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. |
