Hydrodesulfurization process including product recycle

Details Hydrodesulfurization process including product recycle Hydrodesulfurization process including product recycle

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 1122555

HYDRODESULFURIZATION PROCESS INCLUDING PRODUCT RECYCLE Abstract of the Disclosure A catalytic asphaltene-containing oil hydrodesulfurization process employing a fixed catalyst bed comprising particles of supported Group VI and Group VIII metals, preferably together with a separate and downstream fixed catalyst bed comprising particles of Group VI and Group VIII metals together with a promoting amount of Group IV-B metal. The catalyst particles in both beds are in the form of elongated extrudates whose surface is provided with a plural- ity of alternating longitudinal grooves and protrusions. An advan- tageous mass velocity-related catalyst activity effect is achieved by recycling a portion of the desulfurized liquid product. -1-

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