Process and plant for purifying spent oil

Details Process and plant for purifying spent oil Process and plant for purifying spent oil

1995-10-17

1998-06-02

Myers, Helane

Mineral oils: processes and products

Refining

Water removal

208179, 208184, C10M17500, C10G 3300

Patent

active

057593850

ABSTRACT:
The invention concerns a process and plant for purifying spent oil, comprising dehydration, preferably by atmospheric distillation, directly followed by vacuum distillation producing a residue and at least one distilled oil fraction. The vacuum residue directly undergoes solvent extraction and the clarified oil obtained and the distilled oil fraction(s) undergo finishing hydrotreatment.

REFERENCES:
patent: 3244614 (1966-04-01), Summers
patent: 3723295 (1973-03-01), Kress
patent: 3919076 (1975-11-01), Cutler et al.
patent: 4917788 (1990-04-01), Rankel
patent: 5286386 (1994-02-01), Darian

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