CATALYST FOR PRODUCING SYNTHESIS GAS PRODUCTION AND METHOD FOR PRODUCING SYNTHESIS GAS USING SAID CATALYST Russian patent published in 2022 - IPC B01J23/42 B01J23/10 B01J23/30 B01J23/652 B01J32/00 B01J35/10 C01B3/04 

FIELD: catalysts.

SUBSTANCE: invention relates to a catalyst for producing synthesis gas and to a method for producing synthesis gas using said catalyst from a greenhouse gas — carbon dioxide in the process of hydrogenation CO₂ conversion. Catalyst for producing synthesis gas in the process of hydrogenation carbon dioxide conversion constitutes a highly dispersed mesoporous cerium oxide alloyed with tungsten oxide at a molar ratio of 4:1, respectively, with a pore size of 2 to 8 nm, with a total pore volume of 0.132 cm³/g and a specific surface area of 90 m²/g, with the following ratio of components, % wt.: platinum 1, carrier the rest. Proposed is a method for producing synthesis gas in the process of hydrogenation conversion of CO₂ using the proposed catalyst by bringing a reaction mixture containing H₂ and CO₂ taken at a molar ratio of 2:1, respectively, in contact with a fixed layer of the catalyst in the temperature range of 220 to 330 °C, at the volumetric rate of supplying the raw materials into the reactor of 400,000 h^-1 and a pressure of 20 atm.

EFFECT: creation of a catalyst for producing synthesis gas allowing the productivity of the process to be increased to 857 mol of CO₂·kg_cat^-1·h^-1 at a temperature of 330 °C and the target product formation selectivity to be increased to 99.97%, while allowing for simplification of the process due to it being conducted at a lower temperature (220 to 330 °C) and pressure (20 atm), thereby also reducing the total material consumption; another advantage of the proposed method is the possibility of processing carbon dioxide into valuable products; synthesis gas can be applied as a reducing agent in the metallurgical industry and as a raw material for synthesising ammonia, liquid hydrocarbons according to the Fischer-Tropsch process, and for producing various organic compounds, such as C1-C4 alcohols, acetic and formic acid, formaldehyde and dimethyl ether.

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