Hydrotreating catalysts comprising a mixture of a sulfide of a promoter metal, amorphous sulfide of trivalent chromium and microcrystalline molybdenum or tungsten sulfide

Patent · Tue Apr 25 00:00:00 EDT 1989

OSTI ID:5875744

Jacobson, A J; Ho, T C; Chianelli, R R; Steger, J J; Montagna, A A

A process is described for preparing a catalyst comprising a mixture of (i) an amorphous sulfide of trivalent chromium, (ii) microcrystallites of a metal sulfide of a metal selected from the group consisting of Mo, W, and mixtures thereof, and (iii) a sulfide of at least one promoter metal selected from the group consisting of Ni, Co, Mn, Zn, Cu, mixtures thereof and mixtures thereof with Fe, the process comprising heating a precursor at a temperature of at least about 200/sup 0/C., in the presence of sulfur and under oxygen free conditions for a time sufficient to form the catalyst. The precursor comprises a mixture of (i) a hydrated oxide of trivalent chromium and (ii) a thiometallate salt of the general formula (ML)(Mo/sub y/W/sub 1-y/S/sub 4/) wherein M is one or more of the divalent promoter metals selected from the group consisting of Ni, Co, Mn, Zn, Cu, mixtures thereof and mixtures thereof with Fe, wherein Y is any value ranging from 0 to 1, L is one or more neutral, nitrogen-containing ligands, at least one of which is a chelating polydentate ligand.

• Assignee: Exxon Research and Engineering Co., Florham Park, NJ
• Patent Number(s): US 4824820
• OSTI ID: 5875744
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
CATALYSTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
CHEMICAL REACTIONS
CHROMIUM COMPOUNDS
CHROMIUM SULFIDES
COBALT COMPOUNDS
COBALT SULFIDES
COPPER COMPOUNDS
COPPER SULFIDES
HYDROGENATION
INORGANIC PHOSPHORS
MANGANESE COMPOUNDS
MANGANESE SULFIDES
MOLYBDENUM COMPOUNDS
MOLYBDENUM SULFIDES
NICKEL COMPOUNDS
NICKEL SULFIDES
PHOSPHORS
REFRACTORY METAL COMPOUNDS
SULFIDES
SULFUR COMPOUNDS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN SULFIDES
ZINC COMPOUNDS
ZINC SULFIDES