HIGH-SILICA ZEOLITE-CONTAINING OLIGOMERISATION CATALYST, METHOD FOR PREPARATION AND USE THEREOF Russian patent published in 2025 - IPC B01J29/40 B01J31/02 B01J37/04 B01J37/08 C10G50/00 C07C2/12 

FIELD: chemistry.

SUBSTANCE: group of inventions relates to a zeolite-containing oligomerisation catalyst, a method for preparation and use thereof. Described is a method which includes preparing a support obtained with the addition of a binding component, which is added without pre-wetting the zeolite with water, using as a peptizing module an aqueous solution of nitric acid with concentration of 15-30 wt.%, decontaminating the outer surface of the crystalline zeolite of type ZSM-5 by treating with an organosilicon compound at a catalyst moulding step and subsequent calcination, wherein active component used is zeolite ZSM-5 with molar ratio Si/Al equal to 20-1070. Invention also describes a zeolite-containing oligomerisation catalyst and use of the zeolite-containing catalyst for oligomerisation of olefin-containing fractions of hydrocarbons.

EFFECT: zeolite-containing oligomerisation catalyst with improved properties which enable to reduce coke formation and prolong the duration of the cycle between regeneration runs, a method for preparation and use thereof.

10 cl, 1 tbl, 13 ex