Glycerol conversion to acrylonitrile by consecutive dehydration over WO3/TiO2 and ammoxidation over Sb-(Fe,V)-O

► Conversions of glycerol to acrolein and of acrolein to acrylonitrile were studied. ► Dehydration and ammoxidation steps were successfully combined in a tandem reactor. ► The presence of FeSbO4 was correlated to the high selectivity to acrylonitrile. ► The performance increase with reaction time was due to in operando FeSbO4 formation.