ZEOLITE-CONTAINING CATALYST, METHOD OF PREPARING SAID CATALYST AND METHOD OF PREPARING ENGINE FUEL USING SAID CATALYST Russian patent published in 2010 - IPC C10G35/95 B01J29/48 

FIELD: chemistry.

SUBSTANCE: invention relates to oil refining and petrochemical industries and is aimed at preparing catalysts used in processing petroleum cuts and gas condensates into engine fuel. The zeolite-containing catalyst for preparing engine fuel from petroleum cuts and gas condensates contains a pentasil ZSM-5 zeolite with silica module SiO₂/Al₂O₃=20-80 mol/mol and residual content of sodium oxide 0.02-0.05 wt %, bismuth oxide as a structure element of the zeolite component with the following content of components (wt %): zeolite 70.00-85.00; Bi₂O₃ 1.0-6.00; Na₂O 0.02-0.05; binding component - the rest. The method of preparing the zeolite-containing catalyst involves hydrothermal synthesis of Na-forms of zeolite with subsequent salt ion exchange and obtaining an ammonium form of zeolite, after which a catalyst mass is prepared which is then granulated, dried and annealed at temperature 550-650°C. The method of preparing engine fuel from petroleum cuts and gas condensates involves passing vapour of petroleum cuts and gas condensates through a fixed bed of zeolite catalyst heated to temperature 300-440°C, with catalyst material loading of 2 h^-1.

EFFECT: reduced number of components and stages for synthesis of zeolite-containing catalyst, increased degree of converting raw material, quality and output of end products on the proposed catalyst, reduced number of stages for processing hydrocarbon material into the end product.

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