Selective Hydrogenation of Soybean Oil on Copper Catalysts as a Tool Towards Improved Bioproducts (Articolo in rivista)

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  • Selective Hydrogenation of Soybean Oil on Copper Catalysts as a Tool Towards Improved Bioproducts (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s11746-012-2119-6 (literal)
Alternative label
  • A. F. Trasarti, D. J. Segobia, C. R. Apesteguía, F. Santoro, F. Zaccheria & N. Ravasio (2012)
    Selective Hydrogenation of Soybean Oil on Copper Catalysts as a Tool Towards Improved Bioproducts
    in Journal of the American Oil Chemists' Society; Springer, New York (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • A. F. Trasarti, D. J. Segobia, C. R. Apesteguía, F. Santoro, F. Zaccheria & N. Ravasio (literal)
Pagina inizio
  • 2245 (literal)
Pagina fine
  • 2252 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 89 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 12 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Catalysis Science and Engineering Research Group (GICIC), INCAPE (UNL-CONICET), Santiago del Estero 2654, 3000 Santa Fe, Argentina ISTM Milano (literal)
Titolo
  • Selective Hydrogenation of Soybean Oil on Copper Catalysts as a Tool Towards Improved Bioproducts (literal)
Abstract
  • The liquid-phase soybean oil hydrogenation was studied on silica-supported Cu and ternary Cu-Zn-Al catalysts. Cu/SiO2 samples were prepared by incipientwetness impregnation (Cu/SiO2-Imp) and chemisorptionhydrolysis (Cu/SiO2-CH), while two Cu-Zn-Al mixed oxides containing 8 (Cu(8)-Zn-Al) and 15 % Cu (Cu(15)- Zn-Al), respectively, were prepared by coprecipitation. Copper dispersion (DCu) was 23 % on Cu/SiO2-CH, and this sample showed a high activity for soybean oil hydrogenation; in contrast, Cu/SiO2-Imp was inactive, probably because Cu was poorly dispersed (DCu = 2 %). The oil hydrogenation activity on Cu(15)-Zn-Al (DCu = 9 %) was lower than on Cu/SiO2-CH, while Cu(8)-Zn-Al (DCu = 23 %) was inactive. Citral hydrogenation used as a test reaction showed that the intrinsic Cu0 activity was not significantly changed by the kind of support or the catalyst preparation method. These latter results suggested that the observed differences in soybean oil hydrogenation may be explained as changes in accessibility of the triglyceride molecules to Cu active sites. In ternary Cu-Zn-Al samples, access to catalytic sites was hampered by the narrower pore structure of the catalyst. Copper exhibited unique properties for obtaining proper lubricants from soybean oil hydrogenation because selectively hydrogenated unsaturated linolenic (C18:3) and linoleic (C18:2) fatty acids to unsaturated oleic acid (C18:1) without forming saturated stearic acid (C18:0). (literal)
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