Reactor for producing hydrogen and carbon through pyrolysis of methane by thermal storage method, and combination reactor comprising same

A reactor for producing hydrogen and carbon through methane pyrolysis by a thermal storage method, the reactor comprising:

• a reaction unit in which pure-oxygen combustion of carbon, pyrolysis of methane, and a Boudouard reaction for producing carbon monoxide are carried out;
• a first accommodation unit that supplies the carbon and oxygen to the reaction unit, accommodates carbon and hydrogen obtained by the pyrolysis of the methane, or supplies carbon dioxide to the reaction unit;
• a flame supply unit that generates a flame within the reaction unit;
• a thermal storage unit that is located within the reaction unit and stores combustion heat generated during the pure-oxygen combustion of the carbon;
• and
• a second accommodation unit that accommodates carbon dioxide produced by the pure-oxygen combustion of the carbon, supplies methane to the reaction unit, or accommodates the carbon monoxide,
• wherein the pure-oxygen combustion of the carbon, the pyrolysis of the methane, and the Boudouard reaction are sequentially carried out.