Hydrotreating process employing catalysts comprising a supported mixture of a sulfide of a promoter metal, trivalent chromium and molybdenum or tungsten

Patent · Tue May 27 04:00:00 EDT 1986

OSTI ID:5474999

Ho, T C; Young, II, A R; Chianelli, R R; Jacobson, A J

A process is described for improving the oxidation stability of a nitrogen and sulfur containing lube oil feed which comprises contacting the feed at an elevated temperature of at least about 150/sup 0/C and in the presence of hydrogen with a catalyst comprising a support mixture of a sulfide of (i) trivalent chromium, (ii) Mo, W or mixture thereof and (iii) at least one promoter metal selected from the group consisting of Ni, Co, Mn, Cu, Zn and mixture thereof and mixture thereof with Fe. The catalyst has been prepared by compositing a pre-selected quantity of inorganic refractory oxide support material with (a) a hydrated oxide of trivalent chromium and (b) one or more catalyst precursor salts containing a thiometalate anion of Mo, W or mixture thereof and a cation containing at least one of the promoter metals wherein the promoter metal in the cation is divalent and is chelated by at least one neutral, nitrogen-containing polydenate ligand and heating the composite at elevated temperature, in the presence of sulfur or sulfur bearing compound and under oxygen-free conditions for a time sufficient to form the catalyst, the contacting of the feed with the catalyst occurring for a time sufficient to improve the oxidation stability of the oil.

• Assignee: Exxon Research and Engineering Co., Florham Park, NJ
• Patent Number(s): US 4591429
• OSTI ID: 5474999
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMIUM COMPOUNDS
CHROMIUM SULFIDES
COBALT COMPOUNDS
COPPER COMPOUNDS
DISPERSIONS
ELEMENTS
HEATING
HIGH TEMPERATURE
HYDROGEN
HYDROGENATION
LUBRICANTS
LUBRICATING OILS
MANGANESE COMPOUNDS
MIXTURES
MOLYBDENUM COMPOUNDS
MOLYBDENUM SULFIDES
NICKEL COMPOUNDS
NITROGEN
NONMETALS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
PETROLEUM PRODUCTS
REFRACTORY METAL COMPOUNDS
STABILITY
SULFIDES
SULFUR COMPOUNDS
SULFUR CONTENT
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
TUNGSTEN SULFIDES
ZINC COMPOUNDS