Abstract:

A series of Cu-ZnO/MgO-SiO₂ catalysts were prepared via impregnation method with the support SiO₂ modified by different contents of Mg and examined in dehydrogenation of 2butanol. The effects of content of Mg on the structure and property of the catalysts were characterized by means of XRD, TPD and TPR technologies. The results indicate that the content of Mg can improve the dispersion of copper and the acid property of the catalysts. So, the appropriate content of Mg can improve the activity performance of Cu-ZnO/MgO-SiO₂ catalysts.

Key words: alkalineearth metal, Cu-ZnO/MgO-SiO₂ catalyst, 2butanol, dehydrogenation