초록 |
Fischer-Tropsch synthesis (FTS) is a heterogeneous catalytic process to produce eco-friendly fuels from the syngas by CO hydrogenation. Based on our previous study, ZrO2-promoted mesoporous Fe2O3 showed an enhanced catalytic activity and structural stability. The alkali metals such as Na and K, which are well known promoters for Fe-based catalysts, were further investigated on the highly ordered mesoporous Fe2O3-ZrO2 bimetal oxides in terms of CO conversion and product distributions. To find out optimum reaction conditions on the K-promoted mesoporous Fe2O3-ZrO2, temperature, pressure, space velocity (SV) and H2/CO ratio were studied and various characterization methods were applied to verify the roles of alkali metal effects on the Fe2O3-ZrO2 surfaces. |