Highly active and selective iron FT catalysts have been developed using a novel co-precipitation method.  The physical and chemical properties of these catalysts compare favorable with properties of representative precipitated iron catalysts described in the literature.  Catalysts have surface areas between 50 and 150 m2 /g and pore volumes of 0.15 to 0.30 mL/g.  Hydrogen chemisorption measurements were 100 to 150 �mol/g.  1st-order activities at 260�C, 21 atm and H2:CO = 0.7-1 are 125-154 mmol CO/g h MPa H2.  Selectivity to methane was 0.04-0.06.  Catalyst productivity to hydrocarbons was 0.55-0.72 g HC/g cat h.  XRD patterns show a uniform 2-4 nm hydrated iron oxide precursor and 9-20 nm mixed pahse catalyst post reduction and passivation.  XRD post reaction shows mixed carbide, oxide and metal phases.

Solvent-deficient preparation of iron Fischer-Tropsch catalysts

243rd National Meeting (2012)

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