HYDROPROCESSING CATALYSTS AND METHODS FOR MAKING THEREOF
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United States of America Patent
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Issued Date -
Jul 5, 2012
app pub date -
Dec 20, 2011
filing date -
Dec 30, 2010
priority date (Note) -
Abandoned
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Abstract
An improved hydroprocessing slurry catalyst is provided for the upgrade of heavy oil feedstock. The slurry catalyst is prepared from at least a Group VIB metal precursor compound and optionally at least a Promoter metal precursor compound. The catalyst comprises dispersed particles in a hydrocarbon medium with the dispersed particles have an average particle size ranging from 1 to 300 μm. The catalyst has a total surface area of at least 100 m2/g. The catalyst is prepared from sulfiding and dispersing a metal precursor solution in a hydrocarbon diluent, the metal precursor comprising at least a Primary metal precursor and optionally a Promoter metal precursor, the metal precursor solution having a pH of at least 4 and a concentration of less than 10 wt. % of Primary metal in solution.
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