Autor según el artículo: Salagre, P.; Gebretsadik, F.B.; Llorca, J; Cesteros, Y.
Departamento: Química Física i Inorgànica
Autor/es de la URV: SALAGRE CARNERO, MARÍA PILAR; Gebretsadik, F.B.; Llorca, J; CESTEROS FERNÁNDEZ, YOLANDA
Palabras clave: Copper nickel Hydrogenolysis
Resumen: Ni and Cu mono- and bi-metallic catalysts modified with various types of acid oxides MOx (M = Mo, V, W and Re) were tested for hydrogenolysis of glycidol, as alternative route to hydrogenolysis of glycerol to obtain 1,3-propanediol. Characterization results revealed that the presence of modifiers affected dispersion and reducibility of the NiO particles, and the strength and amount of the acid sites. Among the modifiers tested, Re showed the highest activity, high propanediols selectivity and the highest 1,3-PrD/ 1,2-PrD ratio. Ni-Cu/Re ratio was optimized to improve the catalytic activity. The best catalytic result, with 46 % 1,3-PrD yield and 1,3-PrD/1,2-PrD ratio of 1.24, was obtained when monometallic Ni catalyst at 40 wt % loading and modified with 7 wt % Re was used at 393 K, 5 MPa H2 pressure after 4 h of reaction. The overall 1,3-PrD yield starting from glycerol and assuming a two-step synthesis (Glycerol Glycidol 1,3-PrD) and a yield of 78% for the first step, would be 36 %. This 1,3-PD yield is the highest for non-noble metal catalyzed reaction and is comparable to direct hydrogenolysis of glycerol using noble metal catalysts, at longer time and high H2 pressure.
Grupo de investigación: Materials Catalítics en Química Verda
Áreas temáticas: Química Química Chemistry
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 1867-3880
Identificador del autor: 0000-0003-3257-2022; ; ; 0000-0002-5439-9358
Fecha de alta del registro: 2018-03-15
Página final: 3680
Volumen de revista: 9
Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion
Enlace a la fuente original: http://onlinelibrary.wiley.com/doi/10.1002/cctc.201700536/abstract
Programa de financiación: CTQ2011-24610
URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
DOI del artículo: 10.1002/cctc.201700536
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2017
Página inicial: 3670
Tipo de publicación: Article Artículo Article
Repositori URV