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Transition metal sulfide promoted molybdenum or tungsten sulfide catalysts and their uses for hydroprocessing

Patent ·
OSTI ID:6734892
A process is described for hydrorefining a hydrocarbon feed which comprises contacting the feed at a temperature of at least about 150/sup 0/C and in the presence of hydrogen with a catalyst obtained by heating one or more precursor salts at elevated temperature of at least about 150/sup 0/C, in the presence of sulfur or one or more sulfur-bearing compounds and under oxygen-free conditions for a time sufficient to form the catalyst. The precursor salt contains a tetrathiometallate anion of Mo, W or mixture thereof and a cation comprising one or more divalent promoter metals which are chelated by at least one neutral, nitrogen-containing polydentate ligand. The divalent promoter metal is selected from the group consisting of Ni, Co, Zn, Cu and mixture thereof. The contacting occurs for a time sufficient to hydrorefine at least a portion of the feed.
Assignee:
Exxon Research and Engineering Co., Florham Park, NJ
Patent Number(s):
US 4650563
OSTI ID:
6734892
Country of Publication:
United States
Language:
English