Hydrodesulfurization of thiophene on carbon nanofiber supported Co/Ni/Mo catalysts |
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| Authors: | Zhixin Yu Lars Erik Fareid Kjell Moljord Edd A Blekkan John C Walmsley De Chen |
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| Affiliation: | aDepartment of Chemical Engineering, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway;bStatoil Research Center, Postuttak, N-7005 Trondheim, Norway;cSINTEF Materials and Chemistry, N-7491 Trondheim, Norway;dDepartment of Physics, Norwegian University of Science and Technology (NTNU), N-7491 Trondheim, Norway |
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| Abstract: | Co, Mo, NiMo and CoMo catalysts supported on alumina, fishbone and platelet carbon nanofibers (CNFs) have been prepared. The dispersion of the oxide phases was qualitatively studied and compared using X-ray diffraction (XRD) and transmission electron microscopy (TEM). The reducibility of the catalysts was studied by temperature programmed reduction (TPR). Hydrodesulfurization (HDS) of thiophene was used as a model reaction to compare the activity of different catalysts. The activity tests showed that the alumina supported catalysts exhibited higher activity compared to the corresponding CNF supported catalysts, and the NiMo catalysts were more active than the corresponding CoMo catalysts. The thiophene HDS activity was correlated with the dispersion of the molybdenum species and the reducibility of different catalysts. Interestingly, the CNF supported Co catalysts have higher thiophene HDS activity than the CNF supported Co(Ni)Mo catalysts. |
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| Keywords: | Carbon nanofiber Co/Ni/Mo Hydrodesulfurization Thiophene |
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