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U.S. Department of Energy
Office of Scientific and Technical Information

Process of converting non-distillable residues of mixed-base or paraffin-base crude hydrocarbon oils

Patent ·
OSTI ID:5637166
A process is disclosed for converting a non-distillable residue of a mixed-base or paraffin-base crude hydrocarbon oil to a distillable precursor for motor fuels and/or petrochemical products which comprises donor solvent hydrovisbreaking said residue in a hydrovisbreaking zone in the presence of a circulated hydrogen donor solvent at a temperature in the range of 380/sup 0/ to 480/sup 0/ C. and at a pressure in the range of 40 to 200 bars said circulated hydrogen donor solvent having been produced in said process by distilling the product from said hydrovisbreaking to separate the hydrogenated liquid hydrocarbons into a plurality of fractions, withdrawing a branch stream and subjecting said branch stream to a catalytic treatment in the presence of molecular hydrogen, whereby aromatic compounds in said branch stream are converted by a selective catalytic hydrogenation to naphthenic compounds and paraffins are converted by a selective catalytic cracking to naphtha fractions which boil below the boiling range of hydrogen donor solvent.
Assignee:
Metallgesellschaft Aktiengesellschaft (Germany, Federal Republic Of)
Patent Number(s):
US 4500415
OSTI ID:
5637166
Country of Publication:
United States
Language:
English