Effect of Metal Type on Partial Hydrogenation of Rapeseed Oil-Derived FAME

Supported SiO₂ catalysts were studied for the partial hydrogenation of rapeseed oil-derived fatty acid methyl esters (FAME) for improving its oxidative stability. The effect of metal type: Pt, Pd, and Ni, on catalytic activity and cis–trans selectivity was investigated. Hydrogenation activity was st...

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Veröffentlicht in:	Journal of the American Oil Chemists' Society 2013-09, Vol.90 (9), p.1431-1438
Hauptverfasser:	Numwong, Natthida, Luengnaruemitchai, Apanee, Chollacoop, Nuwong, Yoshimura, Yuji
Format:	Artikel
Sprache:	eng
Schlagworte:	Agriculture Biodiesel Biomaterials Biotechnology Catalysts catalytic activity Chemistry Chemistry and Materials Science Esters Fatty acids Food Science Hydrogenation Industrial Chemistry/Chemical Engineering Metals nickel Original Paper Oxidative stability Partial hydrogenation rapeseed Rapeseed oil Supported SiO2 catalyst Vegetable oils
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Zusammenfassung:	Supported SiO₂ catalysts were studied for the partial hydrogenation of rapeseed oil-derived fatty acid methyl esters (FAME) for improving its oxidative stability. The effect of metal type: Pt, Pd, and Ni, on catalytic activity and cis–trans selectivity was investigated. Hydrogenation activity was studied in terms of turn over frequency (TOF) of C18:3, C18:2, C18:1, and C18:0 FAME. The highest TOF of C18:3, C18:2, and C18:1 was found for Pd catalyst. However, C18:0 TOF of Pt is higher than that of the Pd catalyst. The higher in C18:0 TOF can explain the low selectivity towards trans-monounsaturated FAME of the Pt catalyst, which is due to the subsequent hydrogenation of the intermediate trans-monounsaturated to saturated FAME. On the other hand, Ni showed the lowest TOFs when compared with the Pt and Pd catalysts.
ISSN:	0003-021X 1558-9331
DOI:	10.1007/s11746-013-2276-2