PILOT PLANT FOR CONTINUOUS PRODUCTION OF HYDROGEN AND GRAPHITE BY METHANE PYROLYSIS Russian patent published in 2025 - IPC C01B3/24 C01B32/205 

FIELD: chemistry.

SUBSTANCE: invention relates to a plant for producing hydrogen in a gas-heated reactor, made of high-alloy stainless steel, comprising a reactor for thermal decomposition of methane into hydrogen gas and solid carbon with an inlet pipe for supplying methane and an outlet pipe for extracting gaseous hydrogen, located inside a vertical-cylindrical gas furnace with external heat insulation, in the lower part of which there are two burners with control valves: ignition burner and burner for combustion of part of hydrogen produced in reactor, which is connected through discharge tube to outlet tube for extraction of gaseous hydrogen, and a compressor located on the discharge tube of hydrogen extraction, creating working pressure in the installation. Plant is characterized by the fact that the reactor is equipped with a system for cleaning carbon deposits from the inner surface of the reactor, which includes steel rods with steel rings attached to them at some distance from each other, two steel cones attached to steel rods in their upper part, magnet located between steel cones and an alternating current coil, which is located outside the reactor and connected to the power supply unit, wherein inside the vertical-cylindrical gas furnace there are several reactors, each of which is separated from the furnace space of the gas furnace by a metal pipe, also, each reactor is equipped with heat exchangers for deep cooling of exhaust gases and cooling of the upper and lower parts of the reactor and a tank for collecting carbon with upper and lower gate valves; length of steel rods allows cleaning system to perform back-and-forth movements during cleaning of inner surface of reactor from carbon deposits.

EFFECT: proposed invention provides efficient production of hydrogen and structured carbon, reduced negative impact on environment and reduced energy consumption.

1 cl, 2 dwg