Turbine oil production

Details Turbine oil production Turbine oil production

1988-12-14

1991-06-04

Davis, Curtis R.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Plural serial stages of chemical conversion

208 87, 208111, 208291, C10G 4700

Patent

active

050211420

ABSTRACT:
Turbine oils are produced from a distillate lube fraction by solvent extraction to remove aromatics, e.g., with furfural, then dewaxing and hydrofinishing to saturate residual aromatics. Treatment with an organic peroxide, such as ditertiary butyl peroxide (DTBP), increases viscosity to compensate for the viscosity loss during the hydrofinishing. Dewaxing may be solvent or catalytic dewaxing or both. Peroxide treatment also reduces cloud point.

REFERENCES:
patent: 3128246 (1964-04-01), Oberright et al.
patent: 3594320 (1971-07-01), Orkin
patent: 3660273 (1972-05-01), Cummins
patent: 4137148 (1979-01-01), Gillespie et al.
patent: 4229282 (1980-10-01), Peters et al.
patent: 4594172 (1986-06-01), Sie
patent: 4618737 (1986-10-01), Chester et al.

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