Process and device for producing hydrogen, carbon monoxide and a carbon-containing product

A process for producing molecular hydrogen (H2), carbon monoxide and a carbon-containing product, the process comprising the following steps:

• (a) providing molecular hydrogen (H2) and molecular oxygen (O2),
• (b) heating a bed of carbon-containing material to a temperature of >800° C. by reacting the molecular hydrogen (H2) with the molecular oxygen (O2),
• wherein steps (a) and (b) proceed in the same reaction apparatus,
• (c) drawing off the synthesis gas formed, containing molecular hydrogen (H2) and carbon monoxide,
• (d) ending the provision of molecular hydrogen (H2) and molecular oxygen (O2) no later than upon reaching a temperature of the bed of carbon-containing material of 1800° C.,
• (e) providing a gaseous hydrocarbon stream and decomposing the hydrocarbons in the presence of the bed of carbon-containing material to give carbon and molecular hydrogen (H2), the temperature of the bed of carbon-containing material decreasing in the process,
• (f) drawing off the molecular hydrogen (H2),
• (g) ending the provision of a gaseous hydrocarbon stream no later than upon reaching a temperature of the bed of carbon-containing material of ≤900° C., and
• (h) withdrawing at least a portion of the carbon-containing material of the bed, wherein the carbon-containing material includes a deposit comprising the carbon-containing product.