%P 639-642
%T Effect of potassium promoter on cobalt nano-catalysts for fischer-tropsch reaction
%A S. Ali
%A N.A. Mohd Zabidi
%A D. Subbarao
%V 1482
%C Kuala Lumpur
%O 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
%L scholars2583
%J AIP Conference Proceedings
%D 2012
%R 10.1063/1.4757549
%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.