Oxidative dehydrogenation of ethane with carbon dioxide over the Cr-based catalysts prepared by sol-gel method
溶胶-凝胶法制备Cr-基催化剂及其CO2氧化乙烷制乙烯

A series of Cr/SiO2-G catalysts with different chromium contents were prepared by sol-gel method using chromium nitrate as the chromium source and tetraethyl orthosilicate (TEOS) as the silica source. The catalysts were characterized by XRD, BET, SEM and TPR. The catalytic performances of Cr/SiO2-G for the oxidative dehydrogenation of ethane to ethylene with CO2 were evaluated in a fixed-bed micro-reactor. XRD results indicated that Cr species were presented in Cr2O3 phase when the Cr content exceeded 5%, w...