Propane Dehydrogenation Over PtSn Catalysts Supported on ZnO-Modified MgAl2O4

Platinum and tin supported on ZnO-modified MgAl2O4 constitutes a new and efficient catalyst for the dehydrogenation of propane. The structure of the catalyst has been studied by XRD, TEM, BET, TG, H2-TPR and H2 chemisorption and catalytic properties for propane dehydrogenation have been tested on a microreactor. It has been shown that the catalyst is superior to conventional alumina-supported PtSn systems and PtSn/MgAl2O4 in terms of lifetime stability, activity and propene selectivity. The characterization results of catalysts revealed that ZnO-modified catalysts can increase the Pt dispersion and enhance the interaction between metal and support, resulting in the increase of catalytic activity for propane dehydrogenation.