Hydrodesulfurization process employing a promoted catalyst

Details Hydrodesulfurization process employing a promoted catalyst Hydrodesulfurization process employing a promoted catalyst

C - Chemistry, Metallurgy

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C10G 45/04 (2006.01) B01J 23/85 (2006.01) B01J 35/10 (2006.01) C10G 45/08 (2006.01) C10G 65/04 (2006.01)

Patent

CA 1114319

HYDRODESULFURIZATION PROCESS EMPLOYING A PROMOTED CATALYST Abstract of the Disclosure An asphaltene-containing oil hydrodesulfurization process employing an upstream catalyst and a downstream catalyst in series. The downstream catalyst comprises supported Group VI and Group VIII metals together with a promoting amount of Group IV-B metal in the form of particles whose surface is shaped by multiple elongated alternating grooves and protrusions. The upstream catalyst comprises Group VI and Group VIII metals without promotion with Group IV-B metal in the form of particles which may or may not be similarly shaped. Beds of the downstream and upstream catalyst may be dis- posed in the same or in different reactors. The adaptation of the grooved particle configuration to the promoted catalyst composition provided the early development of a plateau-like aging curve which was not achieved by the adaptation of the grooved shape to a non- promoted catalyst. -1-

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