The article presents experimental studies on the methane pyrolysis process in a 30 cm layer of molten tin. The experiments were carried out on a specially made setup in the temperature range from 800 °С to 1000 °С, at a pressure of 4.5 atm, and with a gas flow rate of 3 l/h. The dependence of hydrogen concentration, methane, and its derivatives (ethane, ethylene, and acetylene) in the produced mixture of hydrocarbon gases has been obtained.