Stacked bed catalyst system for deep hydrodesulfurization

Details Stacked bed catalyst system for deep hydrodesulfurization Stacked bed catalyst system for deep hydrodesulfurization

1994-05-17

1995-12-12

Myers, Helane

Mineral oils: processes and products

Refining

Sulfur removal

208208R, 208215, 208216R, C10G 4504, C10G 4508

Patent

active

054746701

ABSTRACT:
The present invention relates to a method of removing sulfur from a hydrotreating process stream comprising contacting a sulfur containing feedstock with a stacked bed catalyst system comprising a first catalyst bed comprising hydrodesulfurization catalysts followed by a second catalyst bed comprising ruthenium sulfide having a surface area of at least about 30 m.sup.2 /g and wherein said hydrodesulfurization process is conducted at a temperature of about 150.degree. C. to about 400.degree. C. and a pressure of about 50 psig (344.74 kPa) to about 2500 psig (17236.89 kPa).

REFERENCES:
patent: 4279737 (1981-07-01), Chianelli et al.
patent: 4419224 (1983-12-01), Miller et al.
patent: 4983558 (1991-01-01), Born et al.
patent: 4985132 (1991-01-01), Moser et al.
patent: 5110444 (1992-05-01), Haun et al.
patent: 5186818 (1993-02-01), Daage et al.
"Heat Effects in Gas Sulfiding of Hydroprocessing Catalysts," Reyes and Ho, AIChE Journal, Feb. 1988, vol. 34, No. 2.

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