Deasphalting with liquid hydrogen sulfide

Details Deasphalting with liquid hydrogen sulfide Deasphalting with liquid hydrogen sulfide

C - Chemistry, Metallurgy

10

G

196/246

C10G 21/06 (2006.01) C10G 21/00 (2006.01)

Patent

CA 1096801

ABSTRACT OF THE DISCLOSURE An asphalt-containing mineral oil is deasphalted by contacting the oil with a liquid hydrogen sulfide deasphalting solvent for a time sufficient to remove a substantial portion of the asphalt from the oil. Utilization of liquid hydrogen sulfide as the deasphalting solvent is capable of giving high yields of deasphalted oil. In contrast to the use of aliphatic solvents for deasphalting, the hydrogen sulfide readily mixes with the heavy feed even at relatively low temperatures.

286177

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