FIELD: catalysts.
SUBSTANCE: invention relates to a method for producing a reforming catalyst, the method comprising: (a) impregnating one supporter with one promoting metal and one active metal component to obtain a second catalytic precursor; (b) contacting a second catalytic precursor with at least one non-metallic component to form a third catalytic precursor; (c) coating the third catalytic precursor with at least one silanising agent to form a coated third catalytic precursor, wherein said coating with at least one silanising agent enhances the acidic nature of said supporter and improves the sintering resistance properties of said active metal component; and (d) drying the coated third catalyst precursor at a temperature in the range of 100-120°C to produce a dried third catalyst precursor and subsequently calcining the dried third catalyst precursor at 500°C to produce a reforming catalyst, where the supporter is gamma-alumina, the promoting metal is tin, the active metal component is platinum, and the non-metallic component is chlorine or an aqueous solution of HCl. The impregnation of at least one supporter comprises: bringing an aqueous solution containing at least one promoting metal into contact with the support at a pH value in the range of 1-4 for a period of time in the range of 40-120 minutes at a temperature in the range of 40-60°C, at a speed in the range of 100-150 rpm and subsequent drying at a temperature in the range of 40-120°C under a pressure in the range of 30-200 mbar for a period of 20-90 minutes to obtain the first catalytic precursor. The invention also relates to reforming catalysts and to a method for catalytic reforming of a feed hydrocarbon stream through the use of a reforming catalyst.
EFFECT: increase in catalytic activity and enhancement of the acid function of the catalyst, reducing costs associated with the implementation of the catalytic reforming process.
16 cl, 1 dwg, 8 tbl, 4 ex
