INVESTIGADORES
MARIÑO fernando Javier
congresos y reuniones científicas
Título:
Kinetics of CO oxidation over CuO/CeO2 catalysts
Autor/es:
MORENO, MÁXIMO; BERGAMINI, MARÍA LORENA; BARONETTI, GRACIELA; LABORDE MIGUEL; MARIÑO, FERNANDO
Lugar:
Lyon
Reunión:
Simposio; Natural Gas Conversion Symposium 9 (NGCS-9); 2010
Institución organizadora:
Natural Gas Conversion Board
Resumen:
In this work it is developed a power law type kinetic model and, because of the difficulties related to the design of the reactor, a mechanism of reaction is proposed.
This mechanism of the CO oxidation over CuO/CeO2 catalysts has been developed, finding that copper species change from Cu2+ to Cu1+ in the CO oxidation step and, then, from Cu1+ to Cu2+ in the ceria reduction step. Finally, Ce3+ is re-oxidized to Ce4+ with oxygen from gas phase. The kinetic expression derived from this mechanism can predict extremely well the reaction rate for different conditions.
