Slurry catalyst for hydroprocessing heavy and refractory oils
February 15, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesStable crystalline lithium nitride and process for its preparation Catalysts from molybdenum polysulfide precursors and their preparation Supported carbon-containing molybdenum and tungsten sulfide catalysts, their preparation and use Hydrogenation processes using carbon-containing molybdenum and tungsten sulfide catalysts Hydrocarbon processing Heavy oil hydroprocessing Hydrotreating using self-promoted molybdenum and tungsten sulfide catalysts formed from bis(tetrathiometallate) precursors Hydroconversion of heavy crudes with high metal and asphaltene content in the presence of soluble metallic compounds and water Method of making self-promoted hydrotreating catalysts Transition metal sulfide promoted molybdenum or tungsten sulfide catalysts and their uses for hydroprocessing InventorsAssigneeApplicationNo. 657351 filed on 02/15/1991US Classes:502/219, And Group VI metal containing (i.e., Cr, Mo, W or Po)502/220Molybdenum containingExaminersPrimary: Chaudhuri, OlikAssistant: Fourson, G. International ClassesB01J 027/047B01J 027/051 AbstractGroup VIB metal sulfide slurry catalysts having a pore volume in the pore size range 10 to 300Å radius of at least 0.1 cc/g. Also, Group VIB metal sulfide catalysts having a surface area of at least 20 m2 /g. Suitable Group VIB metals are molybdenum and tungsten, preferably molybdenum. The Group VIB metal sulfide can be approximately a Group VIB metal disulfide. The slurry catalyst can be promoted with a Group VIII metal, such as nickel or cobalt. |
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