Reactor temperature T as a function of axial distance within and near the
catalytic zone while increasing and decreasing the feed temperature Tf [480 (C), 550
(:), 620 (-), 430 (B), 390 (D) C] with the following fixed: CH4/O2 feed ratio of 5,
catalyst weight of mcat ¼ 20 mg, flow rate of F ¼ 160 sccm.