Abstract
A cross-shaped pattern was formed on the surface of Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3 − δ oxygen permeation membrane by laser ablation. A membrane reactor made from this membrane was operated for partial oxidation of methane to syngas in the presence of Ni/ZrO 2 catalyst. The CH 4 conversion and CO selectivity of the membrane reactor were 98.8% and 91.5%, respectively, and the oxygen permeation flux through the membrane was 11.0 ml/cm 2 min at 850 °C. The effects of space velocity (SV) on CH 4 conversion and CO selectivity in such reactor were discussed. The mechanism of POM in such membrane reactor may follow the combustion and reforming mechanism.
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