Autor según el artículo: Chimentão R; Miranda B; Ruiz D; Gispert-Guirado F; Medina F; Llorca J; Santos J
Departamento: Enginyeria Química
Autor/es de la URV: Gispert Guirado, Francesc / GUIRADO PAGÉS, FRANCISCO / Medina Cabello, Francisco
Palabras clave: 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
Resumen: © 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.
Áreas temáticas: Fuel technology Engineering, chemical Energy engineering and power technology Energy (miscellaneous) Energy & fuels Electrochemistry Chemistry, physical Chemistry, applied
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
Direcció de correo del autor: francesc.medina@urv.cat
Identificador del autor: 0000-0002-3111-1542
Fecha de alta del registro: 2024-10-05
Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion
Enlace a la fuente original: https://www.sciencedirect.com/science/article/pii/S2095495619307338
URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
Referencia al articulo segun fuente origial: Journal Of Energy Chemistry. 42 185-194
Referencia 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 del artículo: 10.1016/j.jechem.2019.07.003
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2020
Tipo de publicación: Journal Publications
Repositori URV