Using Different Preparation Methods to Enhance Fischer-Tropsch Products over Iron-based Catalyst

作者：Sarkari M; Fazlollahi F; Atashi H^*; Mirzaei A A; Hecker W C

来源：Chemical and Biochemical Engineering Quarterly, 2013, 27(3): 259-266.

• Fischer-Tropsch Synthesis
• Fe-Mn/Al2O3 catalyst
• co-precipitation
• sol-gel
• impregnation

Three Fe-Mn/Al2O3 catalysts were prepared by three different preparation techniques, i.e. co-precipitation; sol-gel and impregnation, and their Fischer-Tropsch Synthesis (FTS) activity and selectivity behavior were investigated and compared using a fixed-bed reactor. It was observed that the impregnated catalyst had the lowest initial activity but was more stable than the other catalysts. The co-precipitated and sol-gel catalysts showed enhanced light olefin production as compared with the impregnated. Methane selectivity decreased with time on stream for both the impregnated and co-precipitated catalysts while it increased for the sol-gel. The impregnated catalyst showed the lowest WGS activity, the highest hydrocarbon selectivity and the highest chain growth probability.

• 出版日期2013-9