TY - JOUR
T1 - Catalytic hydrotreating of heavy gasoil FCC feed on alumina-titania-supported NiMo catalysts
AU - Santes, Víctor
AU - Herbert, Javier
AU - Cortez, Maria Teresa
AU - Zárate, René
AU - Díaz, Leonardo
AU - Swamy, Prakash Narayana
AU - Aouine, Mimoun
AU - Vrinat, Michel
N1 - Funding Information:
The authors thank Instituto Mexicano del Petróleo for its financial support.
PY - 2005/3/18
Y1 - 2005/3/18
N2 - A series of NiMo/γ-Al2O3-TiO2 catalysts were prepared and tested in the hydrotreating of heavy gasoil FCC feed in a pilot plant fixed-bed reactor. Three different methods were applied to obtain the alumina-titania mixed oxides: Impregnation of titanium butoxide over a γ-Al2O3 support, co-precipitation of a mixture of aluminum sulfate, sodium aluminate and titanium sulfate, and a sol-gel method using alkoxides as precursors; the titanium content was kept constant (5 wt.%). Additionally, a γ-Al2O3 support was also prepared as a reference. All supports were characterized by XRD, FT-IR pyridine and HRTEM. Catalysts were prepared by spraying at incipient wetness with the appropriate Ni-Mo solution. Catalytic activity results (HDS, HDM and HDA) showed marked influence of the preparation method. This behaviour is explained in terms of the differences in titania dispersion and acidity of the support.
AB - A series of NiMo/γ-Al2O3-TiO2 catalysts were prepared and tested in the hydrotreating of heavy gasoil FCC feed in a pilot plant fixed-bed reactor. Three different methods were applied to obtain the alumina-titania mixed oxides: Impregnation of titanium butoxide over a γ-Al2O3 support, co-precipitation of a mixture of aluminum sulfate, sodium aluminate and titanium sulfate, and a sol-gel method using alkoxides as precursors; the titanium content was kept constant (5 wt.%). Additionally, a γ-Al2O3 support was also prepared as a reference. All supports were characterized by XRD, FT-IR pyridine and HRTEM. Catalysts were prepared by spraying at incipient wetness with the appropriate Ni-Mo solution. Catalytic activity results (HDS, HDM and HDA) showed marked influence of the preparation method. This behaviour is explained in terms of the differences in titania dispersion and acidity of the support.
KW - Acidity
KW - AlO-TiO
KW - HRTEM
KW - Hydrotreating
KW - XPS
UR - http://www.scopus.com/inward/record.url?scp=14044260006&partnerID=8YFLogxK
U2 - 10.1016/j.apcata.2004.11.025
DO - 10.1016/j.apcata.2004.11.025
M3 - Artículo
SN - 0926-860X
VL - 281
SP - 121
EP - 128
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
IS - 1-2
ER -