Two stage hydrodesulfurization process

Details Two stage hydrodesulfurization process Two stage hydrodesulfurization process

1998-06-18

1999-11-16

Griffin, Walter D.

Mineral oils: processes and products

Refining

Sulfur removal

208210, 208213, 208217, C10G 2500, C10G 4508

Patent

active

059851368

ABSTRACT:
A process for hydrodesulfurizing naphtha feedstreams wherein the reactor inlet temperature is below the dew point of the feedstock at the reactor inlet so that the naphtha will completely vaporize within the catalyst bed. It is preferred to use a catalyst comprised of about 1 to about 10 wt. % MoO.sub.3, about 0.1 to about 5 wt. % CoO supported on a suitable support material. They are also characterized as having an average medium pore diameter from about 60 .ANG. to 200 .ANG.. a Co/Mo atomic ratio of about 0.1 to about 1.0, a MoO.sub.3 surface concentration of about 0.5.times.10.sup.-4 to about 3.0.times.10.sup.-4 g MoO.sub.3 /m.sup.2, and an average particle size of less than about 2.0 mm in diameter.

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patent: 5676882 (1997-10-01), Sudhakar
patent: 5770046 (1998-06-01), Sudhakar

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