Influence of the composition of the reaction mixture on the catalytic properties of the MoVSbNbСeOx/SiO2 catalyst in the reaction of oxidative dehydrogenation of ethane to ethylene

The influence of the reaction mixture composition on the catalytic properties of the Mo 1 V 0.24 Sb 0.23 Nb 0.08 Ce 0.01 O x /50 wt.% SiO 2 catalyst in the reaction of oxidative dehydrogenation of ethane into ethylene at a temperature of 400-440 °C was investigated. It has been shown that at a high concentration of ethane in the reaction mixture C 2 H 6 :O 2 = 74:26 (% vol.) and C 2 H 6 :O 2 = 80:20 (% vol.), the productivity of the process for ethylene is 153-157 g C2H6 /(kg cat. h). The catalyst stable work in highly concentrated reaction mixtures at 400–420 °C. This allows the process of oxidative dehydrogenation of ethane to be carried out with recycling of the reaction mixture at an ethane conversion of 20–30%.