CATALYSTS FOR CONTINUOUS METHANE REFORMING IN MEDIUM TEMPERATURE SOFC

摘要

A simplified reaction path is investigated in which CH_4 is locally and partially reformed with steam produced by the hydrogen anodic oxidation occuring at the electrode triple phase boundary. Ruthenium has been selected as a demonstration catalyst. When supported on either titanium dioxide, lanthanum chromite or YSZ, it performs very well even with a methane/steam ratio as high as 10 and at a temperature as low as 700℃. No carbon deposition is detected after several weeks of operation.