Catalytic conversion of hydrocarbons

Details Catalytic conversion of hydrocarbons Catalytic conversion of hydrocarbons

1979-04-23

1980-07-08

Levine, Herbert

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With preliminary treatment of feed

208111, C10G 1304

Patent

active

042116350

ABSTRACT:
Distillate petroliferous stocks such as neutral lubricating stocks and distillate fuels are hydroprocessed for dewaxing and/or removal of sulfur, nitrogen and metals under hydrogen pressure in a downflow reactor packed with a catalyst suited to the desired conversions in which lighter portions of the charge are introduced to respectively lower levels of the catalyst bed, whereby product withdrawn from the bottom of the reactor is reconstituted distillate of which lighter portions have received milder treatment. In a specific application to catalytic hydrodewaxing of lubricating oil stocks, improvement of Viscosity Index (VI) of dewaxed product results.

REFERENCES:
patent: 3425810 (1969-02-01), Scott
patent: 3579435 (1971-05-01), Olenzak et al.
patent: 3723295 (1973-03-01), Kress
patent: 3755145 (1973-08-01), Orkin
patent: 4011154 (1977-03-01), Strangeland et al.
patent: 4137148 (1979-01-01), Gillespie et al.

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