초록 ▼

Hydrotreating catalyst comprising silica/alumina or silica/alumina-containing carrier comprising 2 to 35 wt. % silica and Group VIII and/or Group VIB metals as hydrogenation active components is prepared by first step impregnation with at least one Group VIII metal and a second step impregnation wit

Hydrotreating catalyst comprising silica/alumina or silica/alumina-containing carrier comprising 2 to 35 wt. % silica and Group VIII and/or Group VIB metals as hydrogenation active components is prepared by first step impregnation with at least one Group VIII metal and a second step impregnation with at least one Group VIB metal. Preferably the impregnation is via ion exchange using a complex salt, preferably an ammine or amine salt, of the metal. The carrier is characterized by a maximum of pores in 30 to 100 Årange and a minimum of pores in 0 to 30 Åand in 300 Å+.

대표청구항 ▼

A process for producing a hydrotreating catalyst which comprises the following steps: (a) obtaining a carrier formed of silica/alumina or a silica/alumina-containing substance, said carrier comprising silica in an amount of 2 to 35 wt.%; (b) immersing said carrier initially in a solution of an amine

A process for producing a hydrotreating catalyst which comprises the following steps: (a) obtaining a carrier formed of silica/alumina or a silica/alumina-containing substance, said carrier comprising silica in an amount of 2 to 35 wt.%; (b) immersing said carrier initially in a solution of an amine complex salt of at least one Group VIII metal so as to obtain an impregnated carrier containing between about 0.5 to 20 wt. %, based on the oxide, of said Group VIII metal; (c) air drying and calcining said impregnated carrier of step (b); (d) immersing said air-dried and calcined carrier in a solution of a salt of at least one Group VIB metal so as to obtain an impregnated carrier comprising between about 5 to 30 wt. %, based on the oxide, of said Group VIB metal.