Hydrodesulfurization process including product recycle

Details Hydrodesulfurization process including product recycle Hydrodesulfurization process including product recycle

1977-06-28

1978-09-26

Crasanakis, George

Mineral oils: processes and products

Refining

Sulfur removal

C10G 2302

Patent

active

041168194

ABSTRACT:
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.

REFERENCES:
patent: RE29315 (1977-07-01), Carlson et al.
patent: 3331769 (1967-07-01), Gatsis
patent: 3674680 (1972-07-01), Hoekstra et al.
patent: 3990964 (1976-11-01), Gustafson
patent: 3997431 (1976-12-01), Beuther et al.
patent: 4028227 (1977-06-01), Gustafson

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