| 초록 |
Reverse water gas shift (RWGS) reaction has been widely used to adjust H2/CO ratio in many industrial applications, such as ammonia and methanol synthesis, Fischer-Tropsch synthesis, which require different H2/CO ratio. Generally, a mixture of Cu, ZnO and Al2O3 at varying composition is a catalyst for low-temperature shift reaction that occur below 300 °C and high-temperature shift reaction catalyst such as Fe2O3/Cr2O3 is usually operating in temperature range of 310 ~ 450 °C. On the other hand, the study of the activity and stability for the RWGS reaction operated above 600 °C has been rarely studied. In this study, 1 wt % Fe supported on gamma-alumina (γ-alumina) with various Cu contents (0, 1, 2, 4 wt %) were successfully synthesized via melt-infiltration, followed by calcination at 700 °C. In addition, the activity and stability of RWGS reaction over these catalysts was studied at extremely high temperature (700 °C). |
