Oxidative dehydrogenation of 1-butene to 1,3-butadiene over BiFe0.65NixMo oxide catalysts: Effect of nickel content

BiFe0.65NixMo oxide catalysts (x = 0–0.2) were prepared and applied for the oxidative dehydrogenation of butenes to 1,3-butadiene. Temperature programmed reoxidation (TPRO) measurements revealed that the catalytic activity was closely related to the oxygen mobility. The surface modification by small amounts of nickel addition is favorable in this reaction. Among the catalysts studied here, BiFe0.65Ni0.05Mo oxide catalyst showed the highest conversion and BD yield (X = 86% and YBD = 72%) due to the high oxygen mobility. The BiFe0.65Ni0.05Mo oxide catalyst is very stable and no deactivation during the 100 h reaction was shown.

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► BiFe0.65NixMo (x = 0–0.2) oxide catalyst was prepared and oxidative dehydrogenation (ODH) of 1-butene was carried out.
► The conversion and BD yield of BiFe0.65Ni0.05Mo catalyst showed the highest values.
► Yield in 1,3-butadiene was correlated with the ease of oxygen mobility.
► No obvious deactivation was observed during the long term stability test.