%0 Conference Paper %A Ali, S. %A Mohd Zabidi, N.A. %A Subbarao, D. %D 2012 %F scholars:2583 %P 639-642 %R 10.1063/1.4757549 %T Effect of potassium promoter on cobalt nano-catalysts for fischer-tropsch reaction %U https://khub.utp.edu.my/scholars/2583/ %V 1482 %X 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 0.06KCo/CNTs catalyst enhanced the C5+ hydrocarbons selectivity by a factor of 23.5 and reduced the methane selectivity by a factor of 39.6 © 2012 American Institute of Physics. %Z cited By 0; Conference of 2nd International Conference on Fundamental and Applied Sciences 2012, ICFAS 2012 ; Conference Date: 12 June 2012 Through 14 June 2012