초록 ▼

This invention relates to hydrotreating with highly active hydrotreating catalysts prepared by incorporating an element selected from the group consisting of nickel, cobalt and mixtures thereof, a heavy metal selected from the group consisting of molybdenum, tungsten and mixtures thereof, into a pho

This invention relates to hydrotreating with highly active hydrotreating catalysts prepared by incorporating an element selected from the group consisting of nickel, cobalt and mixtures thereof, a heavy metal selected from the group consisting of molybdenum, tungsten and mixtures thereof, into a phosphated alumina hydrogel. The final calcined catalysts have surface areas at least about 300 m2/g, at least about 20% of the pore volume in pores having diameters greater than about 350 Åand at least about 20% of the pore volume in pores having diameters less than about 70 Å.

대표청구항 ▼

A process for hydrotreating hydrocarbon feeds by contacting said feeds at a temperature in the range of from about 300°F. to about 900°F. and a pressure in the range of from about 200 psig to about 3500 psig with a hydrotreating catalyst having a surface area of at least about 300 m2/g, at least abo

A process for hydrotreating hydrocarbon feeds by contacting said feeds at a temperature in the range of from about 300°F. to about 900°F. and a pressure in the range of from about 200 psig to about 3500 psig with a hydrotreating catalyst having a surface area of at least about 300 m2/g, at least about 20% of the pore volume in pores having diameters greater than about 350 Åand at least about 20% of the pore volume in pores having diameters less than about 70 Å, wherein said catalyst is prepared by a process which comprises: (a) titrating an aqueous solution of one or more aluminum salt(s) with a titrating agent in the presence of a phosphorus-containing compound in an amount of from about 0.06 to about 0.30 moles of phosphorus per mole of aluminum, thereby forming a precipitate, (b) aging the precipitate at a temperature ranging from about 20°C. to about 90°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, at a pH in the range between about 4.0 and about 9.0 and a temperature in the range between about 25°C. and about 100°C. until adsorption of the salts onto the precipitate is sufficient to yield a final catalyst having from about 1% w to about 5% w cobalt and/or nickel and from about 8% w to about 32% w heavy metal, (e) partially drying the product of step (d) to reduce loss on ignition to between about 55% and about 65%, (f) passing the product of step (e) through a mixing means, (g) extruding the product of step (f), and (h) drying and calcining the product of step (g) at a temperature ranging from about 300°C. to about 900°C.