METHOD OF PREPARATION OF CATALYST FOR BENZENE HYDROISOMERIZATION PROCESS Russian patent published in 2006 - IPC B01J37/02 B01J29/22 B01J29/04 

FIELD: oil refining; preparation of catalysts for refining of oil fractions; preparation of catalysts for benzene hydroisomerization process.

SUBSTANCE: proposed method includes mixing of components: zeolite component-mordenite with binder-aluminum hydroxide, plastification by means of peptizing by acid solution, granulation, application of platinum and reduction of catalyst; components are mixed at mass ratio of from 1:9 to 2:3 in terms of calcined mordenite and aluminum hydroxide; after application of platinum, heat treatment is carried out at two stages at temperature of 100-110°C at first stage and not above 250-300°C at second stage; reduction of catalyst is performed at temperature not below 500°C. Used as aluminum hydroxide is pseudo-boehmite of Catapal A grade. Used as zeolite component is high-modulus mordenite at silicate modulus M=20-30 at its content in catalyst of 20-30%. Used as zeolite component is low-modulus mordenite at silicate modulus M=10 at its content in catalyst not exceeding 10%.

EFFECT: enhanced selectivity of catalyst; considerable reduction of power requirements.

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