A systematic study of the catalytic behaviour of a FeVO4sample in the anaerobic ethanol transformation was performed and compared with reference oxides V2O5and Fe2O3. It was found that the alcohol is able to reduce the samples at 300°C. The FeVO4and V2O5samples have almost identical catalytic behaviour even if they form completely different structures during reduction. It was concluded that in the first case, Fe plays a role as a "stabilizer" of the reduced phase thanks to the formation of a spinel phase where the V is mainly present as V3+whereas in the case of V2O5the reduction under the same conditions leads mainly to a VO2phase and the presence of this V4+vanadium species catalyse side reactions.
Velasquez Ochoa, J., Malmusi, A., Cavani, F. (2017). Valorization of ethanol by anaerobic transformation over vanadium containing catalyst. Hamburg : Deutsche Wissens. Gesell. fur Erdoel, Erdgas und Kohle EV.
Valorization of ethanol by anaerobic transformation over vanadium containing catalyst
Velasquez Ochoa, J.;Malmusi, A.;Cavani, F.
2017
Abstract
A systematic study of the catalytic behaviour of a FeVO4sample in the anaerobic ethanol transformation was performed and compared with reference oxides V2O5and Fe2O3. It was found that the alcohol is able to reduce the samples at 300°C. The FeVO4and V2O5samples have almost identical catalytic behaviour even if they form completely different structures during reduction. It was concluded that in the first case, Fe plays a role as a "stabilizer" of the reduced phase thanks to the formation of a spinel phase where the V is mainly present as V3+whereas in the case of V2O5the reduction under the same conditions leads mainly to a VO2phase and the presence of this V4+vanadium species catalyse side reactions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
