Burner with only oxidation reaction space for reactor with only reduction reaction space

A burner array for a reduction reactor,

• wherein the burner array includes multiple burners disposed on a wall of the reduction reactor to allow an inner temperature in the reduction reactor to reach above 1200° C., wherein the reduction reactor has a reaction space formed therein,
• wherein each burner has a fuel feeding hole and multiple oxygen feeding holes formed therein,
• wherein each burner has a head portion thereof having an elongate combustion space formed between the burner head and the reaction space such that the burner is recessed from the wall of the reduction reactor, the combustion space fluid-communicating with the reaction space of the reactor, wherein the elongate combustion space comprises a spark plug and has a length configured such that oxygen supplied from the oxygen feeding holes thereto is completely consumed via oxidation or combustion with fuels supplied from the fuel feeding hole thereto only in the elongate combustion space upon igniting the burner,
• wherein the elongate combustion space is configured such that non-combusted fuels and H2O molecules and/or CO2 molecules generated via the oxidation reaction in the elongate combustion space are flowed into the reaction space of the reduction reactor, where only a reduction reaction of the H2O molecules and/or CO2 molecules occurs at the temperature above 1200° C. using a radiation heat generated from the burner.