Partial oxidation of methane to synthesis gas was investigated in a reactor consisting of an oxygen-permeable SrFeCo0.5Oy membrane tube and a Ni/ç-Al2O3 catalyst bed located after the membrane tube. In this reactor, part of methane reacted with oxygen that permeated through the membrane from air, and the resultants (H2O, CO2) and the rest of methane were transported to the catalyst bed whe…