C-8 AROMATIC HYDROCARBONS ISOMERIZATION CATALYST Russian patent published in 2019 - IPC B01J29/44 B82Y40/00 C07C5/27 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil-processing and petrochemical industries. Claimed is the C-8 aromatic hydrocarbons isomerization catalyst, which consists of a carrier, containing, wt. %: zeolite of ZSM-5 type 10.0–75.0; aluminosilicate nanotubes 5.0–70.0; gamma-alumina is the rest up to 100, and the platinum group metal, deposited on the carrier in the amount of 0.1–5.0 % by the catalyst weight. At that, consisting of ZSM-5 type zeolite and aluminosilicate nanotubes the carrier active phase is the hierarchical aluminosilicate material having the micro-mesopores systems, formed by the aluminosilicate nanotubes micropores and the ZSM-5 type zeolite mesopores, crystallized on the aluminosilicate nanotubes surface.

EFFECT: technical result consists in using of having the micro-mesopores system hierarchical aluminosilicate material as the described catalyst part, formed by the aluminosilicate nanotubes mesopores and the ZSM-5 type zeolite micropores, crystallized on the aluminosilicate nanotubes surface, facilitating the diffuse hindrances reduction, which impede the isomerization catalyst required degree of activity achievement.

1 cl, 3 ex, 1 tbl