Hydrotreating of heavy hydrocarbon oils in supercritical fluids
AssigneeNatural Resources Canada
InventorsJan Piskorz, Desmond St. A. G. Radlein, Piotr Majerski, Donald S. Scott
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Abstract
A process is described for hydrotreating a heavy hydrocarbon oil containing a substantial portion of material which boils above 524.degree. C. to form lower boiling materials, which comprises adding to the heavy hydrocarbon oil as solvent a paraffinic, isoparaffinic or cyclic paraffinic hydrocarbon which is also hydrogen-rich and has a critical temperature of less than 500.degree. C. to thereby form a diluted feedstock mixture and subjecting said feedstock mixture to hydrotreating in the presence of activated carbon catalyst at a temperature and pressure substantially at or greater than the critical temperature and pressure of the solvent.
Claims12
A process for hydrotreating a heavy hydrocarbon oil to form lower boiling materials, which comprises adding to the heavy hydrocarbon oil a hydrogen-rich hydrocarbon solvent selected from the group consisting of paraffins, isoparaffins and cyclic paraffins and having a critical temperature of less than 500.degree. C. to thereby form a diluted feedstock mixture and subjecting said feedstock mixture to hydrotreating in the presence of activated carbon catalyst without added catalytic metals at a temperature and pressure substantially at or greater than the critical temperature and pressure of the solvent.
Dependencies are inferred from the claim text.