TY - JOUR
T1 - Study of Co, Ru/SBA-15 type materials for Fischer-Tropsch synthesis in fixed bed tubular reactor
T2 - I. Effect of the high Ru content on the catalytic activity
AU - Coronel-García, M. A.
AU - Reyes De La Torre, A. I.
AU - Melo-Banda, J. A.
AU - Martínez-Salazar, A. L.
AU - Silva Rodrigo, R.
AU - Díaz Zavala, N. P.
AU - Portales Martínez, B.
AU - Domínguez, J. M.
N1 - Publisher Copyright:
© 2015 Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
PY - 2015/12/28
Y1 - 2015/12/28
N2 - A study was made on the influence of ruthenium as a promoter of supported Co/SBA-15 catalysts for the Fischer-Tropsch synthesis (FTS). The catalysts with 20% Co and Ru (0.1-5 wt%) were prepared by incipient wetness impregnation and were characterized by XRD, N2 adsorption-desorption, TPR, AAS, oxygen consumption, SEM and TEM. A significant reduction of the specific surface area (SA) and an increase of the pore volume (Vp) were verified in the series of SBA-15 based materials, which can be attributed to a partial blockage of the pores, due to the presence of Co3O4 aggregates within the channels, together with the partial destruction of the pore arrays with the increasing Ru contents. The Cobalt dispersion and its reducibility degree were found relevant for explaining the catalytic activity and these parameters seem related with each other, as well as with the number of surface active sites (Co0). A high selectivity to C5+ hydrocarbons, together with a reduction of methane selectivity was obtained with a higher concentration of Ru, which can be attributed to a better reducibility of the metal phase.
AB - A study was made on the influence of ruthenium as a promoter of supported Co/SBA-15 catalysts for the Fischer-Tropsch synthesis (FTS). The catalysts with 20% Co and Ru (0.1-5 wt%) were prepared by incipient wetness impregnation and were characterized by XRD, N2 adsorption-desorption, TPR, AAS, oxygen consumption, SEM and TEM. A significant reduction of the specific surface area (SA) and an increase of the pore volume (Vp) were verified in the series of SBA-15 based materials, which can be attributed to a partial blockage of the pores, due to the presence of Co3O4 aggregates within the channels, together with the partial destruction of the pore arrays with the increasing Ru contents. The Cobalt dispersion and its reducibility degree were found relevant for explaining the catalytic activity and these parameters seem related with each other, as well as with the number of surface active sites (Co0). A high selectivity to C5+ hydrocarbons, together with a reduction of methane selectivity was obtained with a higher concentration of Ru, which can be attributed to a better reducibility of the metal phase.
KW - Cobalt active sites
KW - Fischer-Tropsch synthesis
KW - Promoter
KW - Ruthenium
KW - SBA-15
UR - http://www.scopus.com/inward/record.url?scp=84959328471&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2015.09.061
DO - 10.1016/j.ijhydene.2015.09.061
M3 - Artículo
AN - SCOPUS:84959328471
SN - 0360-3199
VL - 40
SP - 17264
EP - 17271
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 48
ER -
