The catalysts with 1 wt%, 5 wt% and 10 wt% iron loading supported on α-Al2O3 were synthesized by incipient wetness impregnation using water and acetone as solvents. The catalyst precursors were calcined at 600 °C. The iron loadings of the resulting iron oxides on α-Al2O3 were determined by X-ray fluorescence using a calibration (Figure ). The actual values were close to the target values, indicating a successful synthesis (Figure ). Immediately prior to catalytic testing, the solids were reduced in hydrogen atmosphere at 900 °C. The reduction temperature was determined by TPR. The reduction profile of the supported iron oxides with 1 wt%, 5 wt% and 10 wt% iron loading showed the reduction pathway from Fe2O3 to Fe 0 for different iron loadings. It is reported in the literature, that the reduction of supported Fe2O3 in hydrogen atmosphere follows a two-step reduction: 3 Fe