Hydroconversion processes employing multi-metallic catalysts and method for making thereof
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United States of America Patent
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May 8, 2012
Grant Date -
Apr 30, 2009
app pub date -
Oct 28, 2008
filing date -
Oct 31, 2007
priority date (Note) -
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Abstract
A catalyst precursor composition and methods for making such catalyst precursor are disclosed. The catalyst precursor comprises at least a Promoter metal selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, at least one Group VIB metal, at least one organic, oxygen-containing ligand, and a cellulose-containing material. Catalysts prepared from the sulfidation of such catalyst precursors are used in the hydroprocessing of hydrocarbon feeds. In one embodiment, the sulfidation is carried out by contacting the catalyst precursor with hydrogen and a sulfur containing compound, wherein the contacting is carried out ex-situ. Catalysts prepared from such catalyst precursors have a fouling rate of less than 8° F. (4.4° C.) per 1000 hour.
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