This talk describes the development of a completely new synthetic pathway to produce iron Fischer-Tropsch (FT) catalysts. The iron catalyst preparation was developed using a novel solvent deficient precipitation reaction. Fifteen Fe/Cu/K/SiO2 catalysts were prepared to investigate key preparation variables including timing of promoter addition, washing or not washing after precipitation, and drying temperature. Adding promoters to starting materials before precipitation, or one-step catalysts, gives more uniform promoter distributions which gives higher water-gas shift activity and lower methane selectivity. Overall, one-step catalysts, left unwashed, and dried first at 100�C are best suited in activity, selectivity, and stability for wax production from hydrogen-deficient feed stocks such as coal, biomass, or municipal waste. The activity of the most active catalyst of this study is greater than or equal to the activities of two of three catalysts reported in the literature.

Development of a novel synthetic pathway to produce highly active iron Fischer-Tropsch catalysts

245th National Meeting (2013)

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