Device and method for the pyrolysis of hydrogen-containing compounds

A device for the production of hydrogen (H2) and solid carbon by thermal decomposition of a feed gas containing hydrocarbons, comprising:

• a pyrolysis reactor with a reaction chamber and a collecting chamber arranged above the reaction chamber, wherein the reaction chamber contains a liquid high-temperature heat transfer medium;
• a reactor feed line opening into the reaction chamber;
• a feed for the feed gas (Z), the feed being connected in a fluid-conducting manner to the reactor feed line;
• a heating device for supplying heat to the reaction chamber;
• a discharge device arranged in the collecting chamber for discharging a mixture of substances (S) from the collecting chamber;
• a separation device arranged outside the pyrolysis reactor, the discharge device being connected to the separation device via a discharge line, and the separation device being designed for separating the mixture of substances (S) into at least the components solid carbon and hydrogen (H2) or a gas mixture containing hydrogen (H2);
• and
• a compressor for compressing the fluid supplied to the reactor feed line.