dc.creator | Villaverde, María Magdalena | |
dc.creator | Bertero, Nicolas Maximiliano | |
dc.creator | Garetto, Teresita Francisca | |
dc.creator | Marchi, Alberto Julio | |
dc.date.accessioned | 2017-07-24T20:24:54Z | |
dc.date.accessioned | 2018-11-06T11:42:43Z | |
dc.date.available | 2017-07-24T20:24:54Z | |
dc.date.available | 2018-11-06T11:42:43Z | |
dc.date.created | 2017-07-24T20:24:54Z | |
dc.date.issued | 2013-02 | |
dc.identifier | Villaverde, María Magdalena; Bertero, Nicolas Maximiliano; Garetto, Teresita Francisca; Marchi, Alberto Julio; Selective liquid-phase hydrogenation of furfural to furfuryl alcohol over Cu-based catalysts; Elsevier; Catalysis Today; 213; 2-2013; 87-92 | |
dc.identifier | 0920-5861 | |
dc.identifier | http://hdl.handle.net/11336/21226 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1858265 | |
dc.description.abstract | In this work, the liquid-phase furfural hydrogenation over different Cu-based catalysts was studied. The catalysts were prepared by incipient wetness impregnation (Cu/SiO2-I), precipitation?deposition(Cu/SiO2-PD) and co-precipitation (CuMgAl, CuZnAl and Cu-Cr) methods. CuMgAl, CuZnAl and Cu/SiO2-PD showed higher Cu dispersion and H2 chemisorption capacity than Cu-Cr and Cu/SiO2-I. The selectivity to furfuryl alcohol, at 383 K and 10 bar, using 2-propanol as solvent, was 100% in all of the cases. The pattern for the hydrogenation rate per gram of Cu was: CuMgAl > Cu/SiO2-PD > CuZnAl > Cu-Cr > Cu/SiO2-I. Instead, the hydrogenation rate per Cu atom on the surface (TOF) followed the pattern: CuMgAl > Cu-Cr > Cu/SiO2-PD = CuZnAl > Cu/SiO2-I. These are promising results for the future replacement of polluting Cu-Cr industrial catalysts by a Cr-free one. The highest activity of CuMgAl was attributed to an intimate and effective interaction between Cu0 atoms and Mg2+ cations in a spinel-like matrix. Additional catalytic tests, varying reactant initial concentration and temperature, were performed with CuMgAl catalyst. A negative reaction order (n=−1) respect to furfural and a high apparent activation energy (Ea=127 KJ mol−1) were estimated, indicating a very strong adsorption of furfural on metal copper surface. | |
dc.language | eng | |
dc.publisher | Elsevier | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.cattod.2013.02.031 | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0920586113001193 | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/restrictedAccess | |
dc.subject | FURFURAL | |
dc.subject | LIQUID-PHASE HYDROGENATION | |
dc.subject | FURFURYL ALCOHOL | |
dc.subject | CU-BASED CATALYSTS | |
dc.title | Selective liquid-phase hydrogenation of furfural to furfuryl alcohol over Cu-based catalysts | |
dc.type | Artículos de revistas | |
dc.type | Artículos de revistas | |
dc.type | Artículos de revistas | |