Supercritical phase Fischer-Tropsch synthesis reaction over highly active fused iron catalyst at low temperature

作者：Tang Haodong; Liu Huazhang^*; Yang Xiazhen; Li Ying

来源：Chinese Journal of Catalysis, 2008, 29(2): 174-178.

• fused iron catalyst
• supercritical fluid
• normal paraffin
• Fischer-Tropsch synthesis
• syngas

The Fischer-Tropsch synthesis (FTS) reaction over the fused iron catalyst in the presence of supercritical media was investigated in a fixed-bed reactor. Compared with the gas-phase FTS reaction, the presence of supercritical media resulted in an increase in CO conversion, olefin selectivity, and C5 selectivity, but a decrease in CH4 Selectivity owing to the fact that diffusion was easier in the supercritical media and less inactive carbon was deposited on the catalyst surface. The effects of supercritical media, temperature, pressure, H-2/CO ratio, and syngas flow rate on the supercritical phase FTS reaction were investigated. The n-pentane, n-hexane, n-heptane, and n-octane had similar effects on the FTS reaction. The performance of FTS reaction could be improved when the reaction temperature and pressure were higher than the critical points of the media owing to the better mass and heat transportation in supercritical media.

• 出版日期2008-2
• 单位浙江工业大学