Stabilizing and dewaxing lube oils

Details Stabilizing and dewaxing lube oils Stabilizing and dewaxing lube oils

1981-04-17

1982-11-30

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 18, 208 58, 208 71, C10G 1105, C10G 5506

Patent

active

043614779

ABSTRACT:
A two-step process for dewaxing and stabilizing hydrocracked lubricating oil stocks is disclosed. High-silica zeolite produces catalytic dewaxer effluent containing lower olefins for favorable stabilizing (alkylation) reactions by contact with acidic catalyst substantially free of hydrogenation activity.

REFERENCES:
patent: 3853749 (1974-12-01), Espenscheid et al.
patent: 3928171 (1975-12-01), Yan et al.
patent: 4181597 (1980-01-01), Yan et al.
patent: 4309275 (1982-01-01), Mulaskey
patent: 4309276 (1982-01-01), Miller

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