Molybdenum disulfide catalyst and the preparation thereof

Patent · Tue Jan 06 04:00:00 EST 1981

OSTI ID:6462120

Behan, A S; Naumann, A W

High surface area molybdenum disulfide, MoS/sub 2/, is produced by the thermal decomposition of selected ammonium thiomolybdate salts at temperatures of about 800/sup 0/-800/sup 0/C., with said salts being heated to decomposition temperature at a rate in excess of about 15* C./min., e.g., about 20/sup 0/-30/sup 0/C./min., in an essentially oxygen-free atmosphere. The product molybdenum disulfide has superior catalytic properties for the water gas shift and methanation reactions compared with conventional MoS/sub 2/. The stability of the catalyst is enhanced by decomposing the thiomolybdate salt in admixture with an inert, preformed particulate diluent or by bulk doping said salt with tungsten or vanadium prior to decomposition of the salt. The molybdenum disulfide of the invention also has desirable properties for use in catalyzed hydrogenation and hydrotreating reactions, i.e., hydrodenitrogenation and hydrodesulfurization reactions, particularly when employed in nickel or cobalt-promoted form.

• Assignee: Union Carbide Corp
• Patent Number(s): US 4243554
• OSTI ID: 6462120
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400 -- Petroleum-- Processing
090121 -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
DENITRIFICATION
DESULFURIZATION
HYDROGENATION
METHANATION
MOLYBDENUM COMPOUNDS
MOLYBDENUM SULFIDES
SULFIDES
SULFUR COMPOUNDS
SURFACE AREA
SURFACE PROPERTIES
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
WATER GAS PROCESSES