FIELD: chemical industry.
SUBSTANCE: present invention relates to the aromatization of hydrocarbons using an aromatization catalyst. In particular, the present invention relates to methods for producing an aromatization catalyst. An aromatization catalyst is described containing: a zeolite support, wherein the zeolite support contains a KL zeolite, which is associated with silica and fluorine derived from the first fluorine-containing compound; platinum deposited on a zeolite substrate; chlorine deposited on a zeolite support; and fluorine derived from the second fluorine-containing compound supported on the zeolite support. A method for producing a catalyst includes: calcining an extruded base to form a calcined extruded base, wherein the extruded base contains KL zeolite and a silica binder; contacting the calcined extruded base with a first fluorine-containing compound to form a fluorinated calcined extruded base; washing the fluorinated calcined extruded base to form a washed fluorinated calcined extruded base; drying the washed fluorinated calcined extruded base to form a dried washed fluorinated calcined extruded base; calcining the dried washed fluorinated calcined extruded base to form a bonded zeolite support; and contacting the bonded zeolite support with a platinum-containing compound, a chlorine-containing compound, and a second fluorine-containing compound, wherein the first fluorine-containing compound and the second fluorine-containing compound may be the same or different, wherein the average crush strength of the resulting catalyst is greater than 12 pounds based on at least two samples of catalyst granules.
EFFECT: creation of an improved method for producing an aromatization catalyst with high catalytic selectivity and conversion.
21 cl, 5 tbl
Authors
Dates
2023-11-08—Published
2020-09-17—Filed