Process for hydrotreating hydrocarbon feeds

Patent · Tue Nov 22 04:00:00 EST 1988

OSTI ID:6337611

Kemp, R A

This patent describes a process for hydrotreating hydrocarbon feeds by contacting the feeds at a temperature in the range of from about 300/sup 0/F to about 850/sup 0/F and a pressure in the range of from about 200 psig to about 2500 psig with a hydrotreating catalyst which has a surface area above about 300 m/sup 2//g and at least about 80% of the pore volume in pores having diameters less than about 50 A, wherein the catalyst is prepared by a process which comprises: (a) precipitating an aqueous solution of one or more aluminum salts(s) by adjusting the pH of the solution to a range between about 5.5 and about 10.0 and a temperature in the range between about 20/sup 0/C and about 90/sup 0/C, (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 11.0 to 12.5, (c) washing the precipitate, (d) mixing the precipitate with a solution containing solubilized salts of a heavy metal selected from the group consisting of molybdenum, tungsten and mixtures thereof and an element selected from the group consisting of nickel, colbalt and mixtures therof, and a phosphorus-containing compound in an amount of iron of from about 0.2 to about 1.5 moles of phosphorus per mole of heavy metal at a pH in the range between about 4.0 and about 8.0 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 gel is sufficient to yield a final catalyst having from about 1% w to about 5% w nickel and/or cobalt and from about 8% w to about 32% 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 4786404
• OSTI ID: 6337611
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
AGING
ALUMINIUM COMPOUNDS
AQUEOUS SOLUTIONS
CALCINATION
CATALYSTS
CHEMICAL REACTIONS
CLEANING
COBALT COMPOUNDS
DECOMPOSITION
DISPERSIONS
DRYING
HEATING
HIGH PRESSURE
HIGH TEMPERATURE
HYDROCARBONS
HYDROGENATION
MIXING
MIXTURES
MOLYBDENUM COMPOUNDS
NICKEL COMPOUNDS
ORGANIC COMPOUNDS
PHOSPHORUS COMPOUNDS
PRECIPITATION
PRESSURIZING
PYROLYSIS
REFRACTORY METAL COMPOUNDS
SALTS
SEPARATION PROCESSES
SOLUTIONS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN COMPOUNDS
VERY HIGH TEMPERATURE
WASHING