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Effect of Potassium Promoter on Cobalt Nano-catalysts for Fischer-Tropsch Reaction

Ali, S. and Mohd Zabidi, N. A. and Subbarao, D (2012) Effect of Potassium Promoter on Cobalt Nano-catalysts for Fischer-Tropsch Reaction. In: UNSPECIFIED.

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Abstract

In the present work effect of potassium on cobalt nano-catalysts for Fischer-Tropsch reaction has been presented. The catalysts were prepared using a wet impregnation method and promoted with potassium. Samples were characterized by nitrogen adsorption, H2-TPR, and TEM. The Fischer-Tropsch Synthesis (FTS) was carried out in a fixed-bed microreactor 220 °C, 1 atm, H2/CO=2 and a velocity (SV) =12 L/g.h. for 5 h. Addition of potassium into Co/CNTs decreased the average size of cobalt nanoparticles and the catalyst reducibility. Potassium-promoted Co catalyst resulted in appreciable increase in the selectivity of C5+ hydrocarbons and suppressed methane formation. The 0.06%KCo/CNTs catalyst enhanced the C5+ hydrocarbons selectivity by a factor of 23.5% and reduced the methane selectivity by a factor of 39.6%.

Item Type:Conference or Workshop Item (UNSPECIFIED)
Subjects:Q Science > QD Chemistry
Departments / MOR / COE:Mission Oriented Research > Nanotechnology
ID Code:8422
Deposited By: Assoc Prof Dr Noor Asmawati Mohd Zabidi
Deposited On:22 Nov 2012 02:56
Last Modified:19 Jan 2017 08:21

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