NOVELTY - Apparatus comprises a pre-heater for preheating carbon dioxide-containing gas and methane, a fluidized bed reactor for performing dry modification of methane in presence of catalyst for modifying methane by flowing pre-heated carbon dioxide, a cyclone for discharging hydrogen and carbon monoxide generated by dry modification of methane and collecting catalyst discharged along with hydrogen and carbon monoxide from a reactor, and a reproduction unit for removing deposited carbon by supplying oxygen to catalyst collected in the cyclone. The carbon removed catalyst is re-supplied to the reactor.    USE - The apparatus is useful for dry modification of methane (claimed).    ADVANTAGE - The apparatus is economical, reduces dosage of catalyst depending on the regeneration of the catalyst, avoids catalyst deactivation caused by carbon deposition, recycles methane and catalyst by removing carbon deposited on the catalyst, and increases hydrogen production and conversion of methane to hydrogen by improving the contact efficiency of carbon dioxide-containing gas and methane.    DETAILED DESCRIPTION - Apparatus comprises a pre-heater (200) for preheating carbon dioxide-containing gas and methane, a fluidized bed reactor (100) for performing dry modification reaction of methane in the presence of a catalyst for modifying methane by flowing the pre-heated carbon dioxide, a cyclone (300) for discharging hydrogen and carbon monoxide generated by the dry modification reaction of methane and collecting the catalyst discharged along with hydrogen and carbon monoxide from the reactor, and a reproduction unit (101) for removing deposited carbon by supplying oxygen to the catalyst collected in the cyclone. The carbon removed catalyst is re-supplied to the reactor.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the apparatus (Drawing includes non-English language text).    Fluidized bed reactor (1)    Reproduction unit (101)    Pre-heater (200)    Cyclone (300)