Two-stage catalytic process to produce lubricating oils

Details Two-stage catalytic process to produce lubricating oils Two-stage catalytic process to produce lubricating oils

1978-07-06

1980-12-09

Levine, Herbert

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208111, 252465, 252470, C10G 4712

Patent

active

042383161

ABSTRACT:
A high viscosity index mineral lubricating oil is produced by processing a heavy hydrocarbon feedstock, e.g., a deasphalted residiuum in two (2) catalytic steps. The feedstock is first catalytically hydrocracked, hydrotreated then catalytically hydrogenated and can be fractionated and dewaxed to provide a finished product. Improved step (1) catalysts comprise at least one Group VIB metal, Group VIII metal and mixtures thereof on a support involving both silica-alumina and alumina.

REFERENCES:
patent: 3642610 (1972-02-01), Divijak et al.
patent: 3726790 (1973-04-01), Gallagher et al.

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