Hydrotreating catalysts prepared from hydrogels

Patent · Tue Mar 07 04:00:00 EST 1989

OSTI ID:6113102

Kemp, R A

A process is described for preparing highly active hydrotreating catalysts having surface areas at least about 300 m/sup 2//g, at least about 20% of the pore volume in pores having diameters greater than about 350 A and at least about 20% of the pore volume in pores having diameters less than about 70 A, which process comprises: (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 an element selected from the group consisting of nickel, cobalt, and mixtures thereof, and salts of a heavy metal selected from the group consisting of molybdenum, tungsten, and mixtures thereof, and a phosphorus-containing compound; (e) partially drying the product of step (d) to reduce loss on ignition to between about 55% and about 65%, (f) extruding the product of step (e), and (g) drying and calcining the product of step (f) 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 4810687
• OSTI ID: 6113102
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
ALUMINIUM COMPOUNDS
AQUEOUS SOLUTIONS
CATALYSTS
CHEMICAL COMPOSITION
CHEMICAL PREPARATION
CHEMICAL REACTIONS
COBALT COMPOUNDS
COLLOIDS
DISPERSIONS
GELS
HYDROCARBONS
HYDROGENATION
MIXTURES
MOLYBDENUM COMPOUNDS
NICKEL COMPOUNDS
ORGANIC COMPOUNDS
PHOSPHORUS COMPOUNDS
REFRACTORY METAL COMPOUNDS
SALTS
SOLUTIONS
SYNTHESIS
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS