CINDECA   05422
CENTRO DE INVESTIGACION Y DESARROLLO EN CIENCIAS APLICADAS "DR. JORGE J. RONCO"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
FISCHER-TROPSCH SYNTHESIS: OPTIMIZATION OF THE ACTIVATION TREATMENT WITH H2 IN A Fe/SBA-15 CATALYST
Autor/es:
S.J.A. FIGUEROA, S.J. STEWART, L.A. CANO, J.F. BENGOA, M.V. CAGNOLI AND S.G. MARCHETTI.
Lugar:
Lyon, Francia
Reunión:
Simposio; 9th Novel Gas Conversion Symposium; 2010
Institución organizadora:
Natural Gas Conversion Board
Resumen:
<!-- /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0cm; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman"; mso-ansi-language:FR; mso-fareast-language:FR;} @page Section1 {size:612.0pt 792.0pt; margin:70.85pt 3.0cm 70.85pt 3.0cm; mso-header-margin:36.0pt; mso-footer-margin:36.0pt; mso-paper-source:0;} div.Section1 {page:Section1;} --> An iron catalyst supported on SBA-15, was activated in pure H2 stream. Different iron species were obtained after the different activation treatments: Fe2+ diffused into the SBA-15 walls, Fe3O4 and Feº for the catalyst activated in pure H2 stream. Using “in situ” X-ray absorption studies at Fe K-edge (XANES) we were able to determine that a long reduction period it is not convenient as activation treatment in Fe/SBA-15 system, since the α-Fe content decrease and the Fe2+ ions concentration increase if a reduction time higher than 2.6 h is used. The presence of Fe2+ is undesirable since this species is catalytically inactive
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