Process for deasphalting and demetallizing petroleum residues

Details Process for deasphalting and demetallizing petroleum residues Process for deasphalting and demetallizing petroleum residues

1994-02-16

1995-11-14

McFarlane, Anthony

Mineral oils: processes and products

Fractionation

Deasphalting

208 45, 208 86, 208251R, C10G 2100

Patent

active

054663652

ABSTRACT:
A process for deasphalting and demetallizing petroleum vacuum distillation residues using dimethylcarbonate (DMC) in the presence of an overpressure of carbon dioxide (CO.sub.2) and comprising:

REFERENCES:
patent: 3186938 (1965-06-01), Groli
patent: 4565623 (1986-01-01), Davis
patent: 5346615 (1994-09-01), Savastano
patent: 5354454 (1994-10-01), Savastano et al.
Erdol & Kohle, Tetrochemie, Die Fallung von Asphaltenen aus Erdol-Destillationsruckstanden mit Kohlendioxid, vol. 40, No. 11, Nov. 1987, Leinfelden, pp. 486-488.

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