HYDRODESULFURIZATION PROCESS INCLUDING PRODUCT RECYCLE

HYDRODESULFURIZATION PROCESS INCLUDING PRODUCT RECYCLE 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...

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Hauptverfasser: LESE, HENRI K, FRAYER, JAMES A, METZGER, KIRK J, PARASKOS, JOHN A, MCKINNEY, JOEL D
Format: Patent
Sprache:eng ; fre
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Zusammenfassung:HYDRODESULFURIZATION PROCESS INCLUDING PRODUCT RECYCLE 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 plurality of alternating longitudinal grooves and protrusions. An advantageous mass velocity-related catalyst activity effect is achieved by recycling a portion of the desulfurized liquid product.