Hydrocracking to produce lube oil base stocks

Details Hydrocracking to produce lube oil base stocks Hydrocracking to produce lube oil base stocks

1981-10-09

1983-05-17

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 18, 208 89, C10G 4720, C10G 4904, C10G 6510

Patent

active

043839134

ABSTRACT:
A process for producing lubricating oil base stock from a feedstock having a VI of less than 80 to a base stock with a VI of at least 90 with the same boiling range as the feedstock. The feedstock is contacted with a zeolite-containing hydrocracking catalyst in a first zone and an amorphous hydrocracking catalyst in the second zone. Between 25 percent and 75 percent of all hydroconversion takes place in the first zone.

REFERENCES:
patent: 3280040 (1966-10-01), Jaffe
patent: 3536605 (1970-10-01), Kittrell
patent: 3617487 (1971-11-01), Jaffe
patent: 3755145 (1973-08-01), Orkin
patent: 4263127 (1981-04-01), Rausch et al.

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