Hydrotreating catalysts prepared from hydrogels

Patent · Tue Apr 11 04:00:00 EDT 1989

OSTI ID:5967902

Kemp, R A

A process is described for preparing highly active catalysts having surface areas at least about 300 m/sup 2//g and at least about 70% of the pore volume in pores having diameters less than about 70 A, comprising: (a) titrating an aqueous solution of one or more aluminum salt(s) with a titrating agent, thereby forming a precipitate, (b) aging the precipitate at a temperature ranging from about 20/sup 0/C to about 90/sup 0/C for at least about 15 minutes at a pH ranging from about 8.0 to about 12.0, (c) washing the precipitate, (d) mixing the precipitate with salts of nickel and salts of a heavy metal selected from the group consisting of molybdenum, tungsten, and mixtures thereof, at a pH in the range between about 4.0 and about 10.0 and a temperature in the range between about 25/sup 0/C and about 100/sup 0/C until adsorption of the metal salts onto the precipitate is sufficient to yield a final catalyst having from about 1% w to about 6% w nickel and from about 8% w to about 40% w heavy metal, (e) extruding the product of step (d), and (f) drying and calcining the product of step (e) at a temperature ranging from about 300/sup 0/C to about 900/sup 0/C.

• Assignee: Shell Oil Co., Houston, TX
• Patent Number(s): US 4820679
• OSTI ID: 5967902
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ACTIVATION ENERGY
ALUMINIUM COMPOUNDS
AQUEOUS SOLUTIONS
CATALYSTS
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COLLOIDS
DISPERSIONS
ELEMENTS
ENERGY
ENERGY SOURCES
FOSSIL FUELS
FUELS
GELS
HYDROGENATION
METALS
MIXTURES
MOLYBDENUM
NICKEL COMPOUNDS
PETROLEUM
SALTS
SOLUTIONS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TUNGSTEN