Hydrocracking of heavy asphaltenic oil in presence of an additive to prevent coke formation
AssigneeEnergy, Mines and Resources Canada
InventorsJaroslav F. Kriz, Marten Ternan
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Abstract
In a process for upgrading heavy asphaltenic oil, a feed slurry of a heavy asphaltenic oil and less than 10 ppm of molybdenum, e.g. molybdenum naphthenate, is contacted with a hydrogen-rich gas in a hydroconversion zone at hydrocracking conditions to convert at least a portion of said heavy oil to lower boiling products. This is achieved with minimum coke formation under moderate processing conditions.
Claims2
A hydroconversion process for upgrading heavy asphaltenic oil containing at least 50% by weight of material boiling above 525.degree. C. and at least 10% by weight of asphaltenes and containing sulphur and other impurities which comprises preparing a feed slurry of a heavy asphaltenic oil and less than 5 ppm of molybdenum in the form of an oil soluble compound which under hydroconversion conditions reacts with the sulphur in the heavy asphaltenic oil to form highly dispersed MoS.sub.2 and contacting this slurry with a hydrogen-containing gas in the hydroconversion zone at hydrocracking conditions at a pressure int eh range of 6 to 18 MPa and a temperature in the range of 400.degree. to 460.degree. C. to convert at least a portion of said oil to lower boiling products with minimum coke formation.
A hydroconversion process for upgrading heavy asphaltenic oil containing at least 50% by weight of material boiling above 525.degree. C. and at least 10% by weight of asphaltenes and containing sulphur and other impurities, which comprises preparing a feed slurry of a heavy asphaltenic oil and less than 5 ppm of molybdenum naphthenate and contacting this slurry with a hydrogen-containing gas in a hydroconversion zone at hydrocracking conditions at a pressure in the range of 6 to 18 MPa, a temperature in the range of 400.degree. to 600.degree. C. and a LHSV in the range of 0.1 to 1.0 H.sup.-1 to convert at least a portion of said oil to lower boiling products with minimum coke formation.
Dependencies are inferred from the claim text.