The C55C bonds in the triglycerides were firsthydrogenated and both the HDO and HDC reactions occurredsimultaneously. Although the values of the BET surface areas of thecatalysts were almost similar, production of cracking species wassevere with either Pt/H-ZSM-5 or Re/H-ZSM-5 than the synergicPt-Re/H-ZSM-5 catalyst. The yields to cracking products for thePt/H-ZSM-5, Re/H-ZSM-5 and Pt-Re/H-ZSM-5 were 60, 20 and <5%,respectively. A study on the actual reaction pathways and effectof Pd, Pt and Ru supported with Al2O3 (of variable loadings,39.7–91.9%) for the hydrotreating of soybean oil was recentlyperformed by Veriansyah et al.
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