Manufacture of hydrocracked low pour lubricating oils

Details Manufacture of hydrocracked low pour lubricating oils Manufacture of hydrocracked low pour lubricating oils

1980-06-12

1981-08-11

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 95, 208100, 208103, C10G 4716, C10G 4922

Patent

active

042832713

ABSTRACT:
Hydrocracked, low pour lubricating oils of good stability are manufactured by passing a suitable hydrocarbon feed sequentially through a hydrocracking zone, a catalytic dewaxing zone, and a hydrotreating zone, all at high pressure and in that order, and with separation of hydrocrackate from recycle hydrogen prior to dewaxing. Only clean makeup hydrogen is fed to the dewaxer, passed through the hydrotreater, and then on to the hydrocracker, thereby providing an exceptionally efficient process.

REFERENCES:
patent: 3852207 (1974-12-01), Stangeland et al.
patent: 4137148 (1979-01-01), Gillespie et al.
patent: 4162962 (1979-07-01), Stangeland et al.
patent: 4181598 (1980-01-01), Gillespie et al.
patent: 4183801 (1980-01-01), Breuker et al.
patent: 4238316 (1980-12-01), Mooi et al.

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