| 초록 |
Dehydrogenation of light alkane to alkene is one of the important reactions for the production of higher value chemical intermediates. High cost of platinum and toxicity of chromium oxide requires development of alternative catalysts. We report catalytic properties of zirconium oxide with copper for propane dehydrogenation. To elucidate the effect of copper, catalytic properties of bulk-zirconia, co-precipitated copper-zirconia were compared. These catalysts were pretreated at 600 °C under reduction condition and their catalytic performance was evaluated for propane dehydrogenation at 600 °C under 1 atm total pressure. The catalysts were characterized by nitrogen physisorption, X-ray diffraction, ammonia-temperature programmed desorption, temperature programmed reduction. Both of bulk zirconium oxide and copper-zirconium oxide show high selectivity over 98%. Copper-zirconia has relative higher activity than bulk zirconia and shows volcano plot with respect to molar ratio of copper and zirconium. |
