Upgrading of bitumen asphaltenes by hot water treatment
AssigneeExxon Research & Engineering Co.
InventorsGlen B. Brons, Michael Siskin, Kazimierz O. Wrzeszczynski
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Abstract
A process for upgrading bitumen asphaltenes obtained from tar sands to hydrocarbons which comprises contacting the bitumen with a deasphalting solvent to yield a deasphalted oil and a residual solid asphaltene, separating the residual solid asphaltene from the deasphalted oil and treating the solid asphaltene fraction with superheated water at temperatures of from 300.degree. to 425.degree. C.
Claims5
A process for producing hydrocarbons from recovered bitumen from tar sands or petroleum hydrocarbons which comprises mixing the bitumen with a deasphalting solvent to yield a deasphalted oil and a residual solid asphaltene, separating the residual solid asphaltene from the deasphalted oil, and heating the solid asphaltene fraction with superheated water at temperatures of from 300.degree. to 425.degree. C.
Dependencies are inferred from the claim text.