HIGHLY SELECTIVE CATALYST FOR PRODUCING HIGH-QUALITY GASOLINE FRACTIONS FROM SYNTHESIS GAS AND METHOD FOR PRODUCTION THEREOF Russian patent published in 2013 - IPC B01J29/00 B01J29/42 B01J23/75 B01J37/04 C07C1/04 C10G2/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a catalyst for selective synthesis of high-quality gasoline fractions from synthesis gas and a method for production thereof. Described is a highly selective catalyst for producing high-quality gasoline fractions from synthesis gas, which consists of cobalt, a promoter and a molecular sieve, wherein the weight content of cobalt is 1-30%, the weight content of the promoter is 0.01-5%, and the remaining part is a molecular sieve, with respect to the weight of the catalyst, wherein the molecular sieve is one or more molecular sieves selected from molecular sieves Beta, ZSM-5, MOR, Y and MCM-22, wherein acidity of the molecular sieve is expressed through the amount of adsorbed NH₃, and the adsorption capacity of the molecular sieve ranges from 0.16 to 0.50 mmol NH₃/g; the molecular sieve has a microporous-mesoporous structure, wherein the micropores have diameter of 0.4-0.9 nm, and the mesopores have diameter of 2-30 nm, the specific surface area of the molecular sieve is 100-900 m²/g and the volume of micropores and mesopores is 0.1-0.6 cm³/g, respectively. Described is a method of producing a highly selective catalyst used for synthesis of high-quality gasoline fractions from synthesis gas by Fischer-Tropsch synthesis, involving the following steps: (1) preparing a weighed portion of a cobalt salt according to content of components given above, mixing with a solvent which is deionised water, alcohol or a ketone, to obtain a solution which contains a cobalt salt with concentration of 0.5-20 wt %; (2) preparing a weighed portion of a promoter according to content of components established above, adding to the prepared solution a cobalt salt and stirring for 0.5-3 hours; (3) preparing a weighed portion of a molecular sieve according to content of components established above, adding the molecular sieve to the prepared solution of cobalt salt, stirring for 0.1-15 hours and holding for 0.1-24 hours; (4) evaporating the suspension at temperature of 40-100°C and drying the obtained solid substance under a vacuum at temperature of 30-100°C for 1-24 hours; (5) calcining the dried substance on air at temperature of 300-550°C for 2-10 hours; (6) moulding the calcined powder as a catalyst precursor; (7) reducing the catalyst precursor in a hydrogen atmosphere or a mixture of hydrogen and an inert gas at temperature of 300-550°C for 1-10 hours.

EFFECT: described is a highly selective catalyst for producing high-quality gasoline fractions from synthesis gas.

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