Process for onstream regeneration of a hydrodesulfurization...

Details Process for onstream regeneration of a hydrodesulfurization... Process for onstream regeneration of a hydrodesulfurization...

C - Chemistry, Metallurgy

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C10G 45/00 (2006.01) B01J 23/85 (2006.01) C10G 45/08 (2006.01) C10G 65/04 (2006.01)

Patent

CA 1076052

PROCESS FOR ONSTREAM REGENERATION OF A HYDRODESULFURIZATION CATALYST Abstract of the Disclosure An asphaltene-containing oil hydrodesulfurization process employing stages in series with an interstage flash- ing step. The second stage catalyst comprises Group VI and Group VIII metals together with a promoting amount of Group IV-B metal. The coke level on the second stage catalyst is reduced by intermittent increase and decrease of the hydrogen pressure in the second stage. - 1 -

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