Plant for purifying spent oil

Details Plant for purifying spent oil Plant for purifying spent oil

1997-01-03

1998-12-01

Tran, Hien

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

With means applying electromagnetic wave energy or...

196 1452, 196100, 196106, 196114, B01D 310, B01D 100, C10G 706

Patent

active

058433848

ABSTRACT:
The invention concerns a plant for purifying spent oil, including apparatus for 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), Summer, Jr.
patent: 3723295 (1973-03-01), Kress
patent: 4406778 (1983-09-01), Borza et al.
patent: 4797198 (1989-01-01), Wetzel et al.
patent: 4917788 (1990-04-01), Rankel et al.

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