Preparation and Characterization of Catalysts Fe/SBA-15 for Fischer Tropsch Synthesis

Abstract:

In this study catalysts Fe/SBA-15 were prepared for Fischer-Tropsch Synthesis. SBA-15 samples were synthesized under acidic conditions using triblock copolymer Pluronic as a template and tetraethyl orthosilicate as a silica source.The molar composition was: 1.0 TEOS: 0017 P123: 8.14 HCl: 168 H₂O. Fe/SBA-15 catalysts with different iron loading (15 wt. % and 20 wt. %) were prepared by wetness impregnation of relative SBA-15 with the desired amount of aqueous iron nitrate. The obtained catalyst were characterized by X ray diffraction (XDR), nitrogen adsorption-desorption and energy dispersive X-ray spectrometry (EDX). After impregnation of Fe the XRD profiles were almost unchanged and exhibited the high diffraction peaks of SBA-15 at low angles. The analysis of nitrogen adsorption-desorption was observed that the values of specific surface area decreased as the concentration of metal impregnated increased. And by the EDX analysis verified that the iron contents obtained are close to nominal levels of iron.

• Periodical: Materials Science Forum (Volume 805)
• Pages: 678-683
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.805.678
• Online since: September 2014
• Authors: Ângela da Costa Nogueira*, Jocielys Jovelino Rodrigues, Liliane Andrade Lima, Meiry Glaúcia Freire Rodrigues
• Keywords: Fischer-Tropsch Synthesis, Iron, Nitrogen Adsorption, SBA-15

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