Upgrading of bitumen asphaltenes by hot water treatment containing carbonate (C-2726)
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 containing a soluble carbonate salt at temperatures of from 300.degree. to 425.degree. C.
Claims16
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 containing a soluble carbonate salt at temperatures of from 300.degree. to 425.degree. C.
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 containing a soluble carbonate salt and a transition metal oxide at temperatures of from 300.degree. to 425.degree. C.
Dependencies are inferred from the claim text.