Author, as appears in the article.: Salagre, P.; Gebretsadik, F.B.; Llorca, J; Cesteros, Y.
Department: Química Física i Inorgànica
URV's Author/s: SALAGRE CARNERO, MARÍA PILAR; Gebretsadik, F.B.; Llorca, J; CESTEROS FERNÁNDEZ, YOLANDA
Keywords: Copper nickel Hydrogenolysis
Abstract: 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.
Research group: Materials Catalítics en Química Verda
Thematic Areas: Química Química Chemistry
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 1867-3880
Author identifier: 0000-0003-3257-2022; ; ; 0000-0002-5439-9358
Record's date: 2018-03-15
Last page: 3680
Journal volume: 9
Papper version: info:eu-repo/semantics/acceptedVersion
Funding program: CTQ2011-24610
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Entity: Universitat Rovira i Virgili
Journal publication year: 2017
First page: 3670
Publication Type: Article Artículo Article
Repositori URV