Ni CATALYSTS SUPPORTED OVER MgAl2O4 MODIFIED WITH Pr FOR HYDROGEN PRODUCTION

MARIANA N. BARROSO; AGUSTIN E. GALETTI; M. CRISTINA ABELLO

APPLIED CATALYSIS A-GENERAL

ELSEVIER SCIENCE BV

Año: 2010

0926-860X

MgAl2O4 spinel oxide-supported Ni catalysts modified with Pr have been prepared by wet impregnation method with 8 wt.% Ni and variable loadings of Pr (0-10 wt.%). The samples were characterized by BET, XRD, TPR, SEM, Raman and TG-TPO and they were tested in ethanol steam reforming reaction. The increase of Pr content in the catalyst slowed down the deactivation rate affecting the amount and the type of carbon deposits. Under reactive conditions, the system with 5 Pr wt.% showed the best performance and although it presented filamentous, this catalytic system kept around 80% ethanol conversion during the reaction time (40 h). wet impregnation method with 8 wt.% Ni and variable loadings of Pr (0-10 wt.%). The samples were characterized by BET, XRD, TPR, SEM, Raman and TG-TPO and they were tested in ethanol steam reforming reaction. The increase of Pr content in the catalyst slowed down the deactivation rate affecting the amount and the type of carbon deposits. Under reactive conditions, the system with 5 Pr wt.% showed the best performance and although it presented filamentous, this catalytic system kept around 80% ethanol conversion during the reaction time (40 h). wet impregnation method with 8 wt.% Ni and variable loadings of Pr (0-10 wt.%). The samples were characterized by BET, XRD, TPR, SEM, Raman and TG-TPO and they were tested in ethanol steam reforming reaction. The increase of Pr content in the catalyst slowed down the deactivation rate affecting the amount and the type of carbon deposits. Under reactive conditions, the system with 5 Pr wt.% showed the best performance and although it presented filamentous, this catalytic system kept around 80% ethanol conversion during the reaction time (40 h). wet impregnation method with 8 wt.% Ni and variable loadings of Pr (0-10 wt.%). The samples were characterized by BET, XRD, TPR, SEM, Raman and TG-TPO and they were tested in ethanol steam reforming reaction. The increase of Pr content in the catalyst slowed down the deactivation rate affecting the amount and the type of carbon deposits. Under reactive conditions, the system with 5 Pr wt.% showed the best performance and although it presented filamentous, this catalytic system kept around 80% ethanol conversion during the reaction time (40 h). wet impregnation method with 8 wt.% Ni and variable loadings of Pr (0-10 wt.%). The samples were characterized by BET, XRD, TPR, SEM, Raman and TG-TPO and they were tested in ethanol steam reforming reaction. The increase of Pr content in the catalyst slowed down the deactivation rate affecting the amount and the type of carbon deposits. Under reactive conditions, the system with 5 Pr wt.% showed the best performance and although it presented filamentous, this catalytic system kept around 80% ethanol conversion during the reaction time (40 h). wet impregnation method with 8 wt.% Ni and variable loadings of Pr (0-10 wt.%). The samples were characterized by BET, XRD, TPR, SEM, Raman and TG-TPO and they were tested in ethanol steam reforming reaction. The increase of Pr content in the catalyst slowed down the deactivation rate affecting the amount and the type of carbon deposits. Under reactive conditions, the system with 5 Pr wt.% showed the best performance and although it presented filamentous, this catalytic system kept around 80% ethanol conversion during the reaction time (40 h). 2O4 spinel oxide-supported Ni catalysts modified with Pr have been prepared by wet impregnation method with 8 wt.% Ni and variable loadings of Pr (0-10 wt.%). The samples were characterized by BET, XRD, TPR, SEM, Raman and TG-TPO and they were tested in ethanol steam reforming reaction. The increase of Pr content in the catalyst slowed down the deactivation rate affecting the amount and the type of carbon deposits. Under reactive conditions, the system with 5 Pr wt.% showed the best performance and although it presented filamentous, this catalytic system kept around 80% ethanol conversion during the reaction time (40 h).