Process for deasphalting a hydrocarbon oil

Details Process for deasphalting a hydrocarbon oil Process for deasphalting a hydrocarbon oil

1987-04-01

1989-03-28

Sneed, H. M. S.

Mineral oils: processes and products

Fractionation

Deasphalting

208 45, 585818, C10L 300

Patent

active

048161403

ABSTRACT:
For deasphalting an asphaltene-containing hydrocarbon oil, employed is a hydrocarbon solvent of 3-8 carbon atoms, resulting in an asphaltic phase and a solution of deasphalted oil in the solvent. The solvent is then separated from the deasphalted oil, by passing the solution tangentially across an inorganic membrane of pore radii from 2 to 15 nonometers: the obtained filtrate has an increased solvent content and may be recycled. The deasphalted oil is selectively retained on the upstream side of the membrane.

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