Hydrodewaxing

Details Hydrodewaxing Hydrodewaxing

1982-06-08

1984-05-01

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208154, C10G 4716

Patent

active

044460074

ABSTRACT:
An improved method for hydrodewaxing a petroleum or shale oil fraction, e.g. petroleum distillate, in a reactor is provided which involves contacting said fraction with hydrogen in the presence of a catalyst comprising a crystalline zeolite having a silica to alumina mole ratio of at least 12 under hydrodewaxing conditions wherein the average reactor temperature at start-up of from about 200.degree. C. to 310.degree. C. is increased uniformly to at least 360.degree. C. within about seven days from start-up.

REFERENCES:
patent: 3654138 (1972-04-01), Mosby et al.
patent: 3998722 (1976-12-01), Mayer et al.
patent: 4048094 (1977-09-01), Menzl et al.

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