Abstract: Cu/Al₂O₃ catalysts were prepared by impregnation method. We studied the effect of different crystal forms of　 Al₂O_{3 on the structure and properties of the catalyst and also investigated the effects of these catalysts on the dehydr ogenation of 2-butanol and the selectivity to MEK. Based upon the characteriza tion by means of BET, XRD and TPR, it is conduded that supports can effect the s tate of copper species on the catalyst surface. By an appropriate treatment of the supports, we could get the optimal catalysts for the dehydrogenation of 2-b utanol.}

Key words: Cu/Al₂O₃ catalyst, 2-butanol, dehydrogenation