Performance and Stability of Doped Ceria–Zirconia Catalyst for a Multifuel Reforming

In the present work, catalytic behavior of nickel-based catalysts supported on ceria/zirconia, undoped and doped with lanthanum neodymium (3.5Ni/Ce0.8La0.5Nd0.2Zr0.13O2−x), was investigated under different reactions: steam reforming, partial oxidation autothermal reforming fuels (methane, biogas, propane). The properties these were evaluated at a temperature 800 °C, atmospheric pressure, GSHV = 120,000 h−1, using steam/carbon oxygen/carbon ratio, respectively, S/C 2.5 O/C 0.5 and, in case conditions, addition H2S (100 ppm) as contaminant. Depending tested fuel, ATR, SR, POX reactions over showed results. particular, catalyst, due to doping, better distributed nickel species catalyst surface, promoting higher concentration defect groups oxygen vacancies. This resulted improved performance resistance deactivation. Endurance test also confirmed beneficial effect catalysts.