Effect of Metal Type on Partial Hydrogenation of Rapeseed Oil-Derived FAME
Effect of Metal Type on Partial Hydrogenation of Rapeseed Oil-Derived FAME
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DOI：
10.1007/s11746-013-2276-2
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发表时间：
2013-06
期刊：
影响因子：
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通讯作者：
Natthida Numwong;A. Luengnaruemitchai;N. Chollacoop;Y. Yoshimura
中科院分区：
文献类型：
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作者：
Natthida Numwong;A. Luengnaruemitchai;N. Chollacoop;Y. Yoshimura
研究了负载型SiO2催化剂对菜籽油脂肪酸甲酯（FAME）部分加氢反应的催化性能。考察了金属类型Pt、Pd和Ni对催化活性和顺反选择性的影响。根据C18：3、C18：2、C18：1和C18：0 FAME的转化频率（TOF）研究氢化活性。对于Pd催化剂，发现C18：3、C18：2和C18：1的TOF最高。然而，Pt的C18：0 TOF高于Pd催化剂。C18：0 TOF较高可以解释Pt催化剂对反式-单不饱和FAME的低选择性，这是由于中间体反式-单不饱和FAME随后加氢为饱和FAME。另一方面，当与Pt和Pd催化剂相比时，Ni显示出最低的TOF。
Supported SiO2catalysts 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 andcis–transselectivity 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 towardstrans-monounsaturated FAME of the Pt catalyst, which is due to the subsequent hydrogenation of the intermediatetrans-monounsaturated to saturated FAME. On the other hand, Ni showed the lowest TOFs when compared with the Pt and Pd catalysts.