Development of niobium-promoted cobalt catalysts on carbon nanotubes for Fischer-Tropsch synthesis |
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| Authors: | Sardar Ali Noor Asmawati Mohd Zabidi Duvvuri Subbarao |
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| Institution: | Sardar Ali 1,Noor Asmawati Mohd Zabidi 2,Duvvuri Subbarao 1 1.Department of Chemical Engineering,Universiti Teknologi PETRONAS,Bandar Seri Iskandar,31750 Tronoh,Perak,Malaysia,2.Department of Fundamental and Applied Sciences |
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| Abstract: | Cobalt-based catalysts were prepared by a wet impregnation method on carbon nanotubes (CNTs) support and promoted with niobium.Samples were characterized by nitrogen adsorption,TEM,XRD,TPR,TPO and H2-TPD.Addition of niobium increased the dispersion of cobalt but decreased the catalysts reducibility.Fischer-Tropsch synthesis (FTS) was carried out in a fixed-bed microreactor at 543 K,1 atm and H2/CO=2 for 5 h.Addition of niobium enhanced the C5+ hydrocarbons selectivity by 39% and reduced methane selectivity ... |
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| Keywords: | CNTs cobalt niobium Fischer-Tropsch synthesis |
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