CARRIER, DEHYDROGENATION CATALYST, PRODUCTION METHOD Russian patent published in 2023 - IPC B01J37/04 B01J21/04 B01J23/14 B01J21/06 B01J23/54 B01J27/128 B01J32/00 C07C5/333 B01J37/08 B01J27/06 

FIELD: catalytic chemistry.

SUBSTANCE: method for producing a composite carrier for a catalyst containing an element of group IV of the periodic table in an amount of 0.2 to 0.6 wt.% is described, including the following stages: obtaining a pseudosol containing a water-soluble compound of an element of group IV of the periodic table and aluminium hydroxide; keeping the pseudosol for 0.5 to 12 hours; forming granules of the carrier precursor; washing the carrier precursor beads; drying and calcining the washed carrier precursor pellets to form the carrier. Described are composite carriers for a catalyst for the dehydrogenation of gaseous hydrocarbons obtained by the method described above. Described is a catalyst for the dehydrogenation of gaseous hydrocarbons containing: from 0.1 to 4.5 wt.% of element VIII group of the periodic table; from 0.1 to 6.0 wt.% of element I and/or II group of the periodic table; from 0.1 to 6.0 wt.% of halogen; the carrier is obtained by the method described above. Described is a method for producing a catalyst for the dehydrogenation of gaseous hydrocarbons, which includes the steps: a) obtaining a carrier as described above, b) treating the carrier with an acid; c) calcining the acid-treated support; d) applying to the carrier obtained in step c), an element of Group VIII of the periodic table; e) drying and calcining the catalyst precursor obtained in step d); f) applying to the catalyst precursor obtained in step e), elements I and/or II of group of the periodic table; g) drying and calcining the catalyst precursor obtained in step f), h) applying a halogen to the catalyst precursor obtained in step g); i) drying and calcining the catalyst precursor obtained in step h). Described is a method for producing a catalyst for the dehydrogenation of gaseous hydrocarbons, which includes the following steps: a) obtaining a support in the manner described above; b) applying to the carrier obtained in step a), an element of Group VIII of the periodic table; c) drying and calcining the catalyst precursor obtained in step b); d) applying to the catalyst precursor obtained in step c), elements of Group I and/or II of the periodic table; e) drying and calcining the catalyst precursor obtained in step d); f) coating the catalyst precursor obtained in step e) with a halogen; g) drying and calcining the catalyst precursor obtained in step f). Described is a method for the dehydrogenation of gaseous hydrocarbons in a moving bed mode using the catalyst described above.

EFFECT: increased service life of the catalyst for dehydrogenation of gaseous hydrocarbons while maintaining the efficiency and activity of the catalyst over time, reduction in the number of production stages for obtaining an active and stable catalyst for the dehydrogenation of gaseous hydrocarbons.

46 cl, 5 dwg, 2 tbl, 10 ex