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

Link to the original source: http://onlinelibrary.wiley.com/doi/10.1002/cctc.201700536/abstract

Funding program: CTQ2011-24610

Article's DOI: 10.1002/cctc.201700536

Entity: Universitat Rovira i Virgili

Journal publication year: 2017

First page: 3670

Publication Type: Article Artículo Article