Method for increasing deasphalted oil production

Details Method for increasing deasphalted oil production Method for increasing deasphalted oil production

1983-12-09

1985-06-11

Gantz, Delbert E.

Mineral oils: processes and products

Fractionation

Distillation

208309, C10C 306, C10C 308

Patent

active

045227101

ABSTRACT:
A method for increasing the production of deasphalted oil is described. The method comprises passing a hydrocarbon feedstock into a first distillation zone wherein the feedstock is separated into a first distillate and a first residuum. First residuum is passed to a second distillation zone wherein the fraction is separated into a second distillate and a second residuum. Second distillate and residuum are passed to a deasphalting zone and contacted with a solvent to produce a deasphalted oil. This method may produce increased quantities of acceptable quality deasphalted oil where the deasphalting zone is rate-limiting.

REFERENCES:
patent: 2700637 (1955-01-01), Knox, Jr.
patent: 2834715 (1958-05-01), Pratt
patent: 2847353 (1958-08-01), Beavon
patent: 3108061 (1963-10-01), Meier
patent: 3281350 (1966-10-01), Codet et al.
patent: 3929626 (1975-12-01), Button et al.
patent: 3989616 (1976-11-01), Pagen et al.
patent: 4257871 (1981-03-01), Wernick et al.

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