METHOD OF PRODUCING CATALYST AND METHOD OF PRODUCING SYNTHESIS GAS IN ITS PRESENCE Russian patent published in 2024 - IPC C01B3/38 

FIELD: various technological processes.

SUBSTANCE: invention relates to high-temperature catalytic oxidative methods of converting methane to produce synthesis gas. Disclosed is a method of producing synthesis gas by high-temperature catalytic oxidative conversion of methane by supplying an initial gas mixture containing a mixture of methane and carbon dioxide, into reactor with complex oxide catalyst at high temperature, characterized by that the catalyst used is a complex cobalt and samarium oxide obtained by mixing initial cobalt and samarium compounds, taken in stoichiometric ratios corresponding to the cobalt content in the product after calcination equal to 2 wt.%, with calcination of obtained mixture at temperature increase from room temperature to 800 °C for 3 hours and held at this temperature for 2 hours to obtain a complex oxide of cobalt and samarium, located in a vertical reactor on a substrate of quartz fibre, before the catalyst, a small amount of quartz chips is placed, which acts as a gas mixer, the catalyst is heated in a stream of nitrogen to 900 °C, after which nitrogen supply is switched off and a mixture of methane and carbon dioxide is supplied to the reactor, while maintaining the temperature of catalyst at 900 °C during the entire process of oxidative conversion of methane.

EFFECT: development of a method of producing synthesis gas by carbon dioxide conversion of methane, which provides higher efficiency of the catalyst and yields of CO and H₂, as well as providing fast catalyst output to its optimum operating mode.

3 cl, 1 tbl, 32 ex