Effect of intraparticle diffusion on F-T synthesis

The effect of intraparticle diffusion on the performance of Co/ZrO₂ F-T catalyst was investigated. According to the change of apparent activation energy, the reaction pathway might vary while changing the extent of diffusion limitation. After catalysts were activated, the inner pores would be filled with F-T product gradually. The ratio of gaseous olefin to paraffin followed the “U” type trend. The selectivity to CH₄ increased with the increase of GHSV. And the ratio of gaseous olefin to paraffin also increased slightly with the increase of GHSV due to the intraparticle diffusion limitation.