FISCHER-TROPSCH SYNTHESIS USING IRON SUPPORTED ON POTASSIC LTL ZEOLITE AND MODIFIED WITH Cs

N.G. GALLEGOS; A.M. ALVAREZ; M.V. CAGNOLI; J.F. BENGOA; L.A. CANO; R.C. MERCADER ; S.G. MARCHETTI

CATALYSIS TODAY

ELSEVIER SCIENCE BV

Lugar: Netherlands; Año: 2005 vol. 107 p. 355 - 361

0920-5861

Iron catalysts, to be used in the Fischer?Tropsch reaction were prepared using zeolite LTL and zeolite LTL modified with cesium, as supports. X-ray diffraction, specific surface area, atomic emission and absorption spectroscopies, Mo¨ssbauer spectroscopy in controlled atmosphere, between room temperature and 22 K, H2 chemisorption and volumetric oxidation were used to characterize the solids. Comparing both catalysts, the Cs presence generates a solid with a lower reducibility degree and a lower quantity of Fe0 microcrystals inside the pore structure, leading to a lower activity per gram and a higher olefins/paraffins ratio.2 chemisorption and volumetric oxidation were used to characterize the solids. Comparing both catalysts, the Cs presence generates a solid with a lower reducibility degree and a lower quantity of Fe0 microcrystals inside the pore structure, leading to a lower activity per gram and a higher olefins/paraffins ratio.0 microcrystals inside the pore structure, leading to a lower activity per gram and a higher olefins/paraffins ratio.