Autor segons l'article: Chimentão R; Miranda B; Ruiz D; Gispert-Guirado F; Medina F; Llorca J; Santos J
Departament: Enginyeria Química
Autor/s de la URV: Gispert Guirado, Francesc / GUIRADO PAGÉS, FRANCISCO / Medina Cabello, Francisco
Paraules clau: Selective hydrogenolysis Nickel Hydroxyacetone Hydrogenolysis Glycerol Gas-phase dehydration Ethylene-glycol Dehydration Cu/zno/al2o3 catalysts Copper Conversion Chemicals Catalyst Biomass Acrolein 1,3-propanediol 1,2-propanediol
Resum: © 2019 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences Gas-phase catalytic conversion of glycerol to value added chemicals was investigated over zinc-supported copper and nickel catalysts. The addition of aluminum in the support was also investigated in glycerol conversion and the results indicate an increase in the acidity and adsorption capacity for both copper and nickel catalysts. HRTEM and XRD analysis revealed NiZn alloy formation in the Ni/ZnO catalyst. The XRD patterns of the prepared ZnAl mixed oxide catalysts show the presence of Gahanite phase (ZnAl2O4). In addition, H2 chemisorption and TPR results suggest a strong metal-support interactions (SMSI) effect between Ni and ZnO particles. Bare supports ZnO and ZnAl (Zn/Al = 0.5) were investigated in the glycerol conversion and they did not present activity. Copper supported on ZnO and ZnAl mixed oxide (Zn/Al = 0.5) was active towards hydroxyacetone formation. Nickel was active in the hydrogenolysis of glycerol both for C–C and C–O bonds cleavage of glycerol producing CH4. Strong metal-support interactions (SMSI) between Ni and ZnO has a remarkable suppression effect on the methanation activity during the glycerol conversion.
Àrees temàtiques: Fuel technology Engineering, chemical Energy engineering and power technology Energy (miscellaneous) Energy & fuels Electrochemistry Chemistry, physical Chemistry, applied
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: francesc.medina@urv.cat
Identificador de l'autor: 0000-0002-3111-1542
Data d'alta del registre: 2024-10-05
Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
Enllaç font original: https://www.sciencedirect.com/science/article/pii/S2095495619307338
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Journal Of Energy Chemistry. 42 185-194
Referència de l'ítem segons les normes APA: Chimentão R; Miranda B; Ruiz D; Gispert-Guirado F; Medina F; Llorca J; Santos J (2020). Catalytic performance of zinc-supported copper and nickel catalysts in the glycerol hydrogenolysis. Journal Of Energy Chemistry, 42(), 185-194. DOI: 10.1016/j.jechem.2019.07.003
DOI de l'article: 10.1016/j.jechem.2019.07.003
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2020
Tipus de publicació: Journal Publications
Repositori URV