TY - JOUR
T1 - Preparation and characterization of nano-sized CoMo/Al2O 3 catalyst for hydrodesulfurization
AU - Choi, Ki Hyouk
AU - Korai, Yozo
AU - Mochida, Isao
PY - 2004/4/8
Y1 - 2004/4/8
N2 - CoMo on Al2O3 catalyst prepared by spray pyrolysis method was found in the form of spheres of 0.5-1.2 μm, which consisted of tiny primary particles of ca. 10-20nm diameter. The materials shows comparable activity to those of commercial catalysts in HDS of straight run gas oil, in particular, refractory 4,6-dimethyldibenzothiophene (4,6-DMDBT). Weaker interactions between CoMo and Al2O3 are suggested by temperature-programmed reduction (TPR), Raman spectroscopy, to give more active species than those over the impregnated catalysts. This accounts for its comparable activity in spite of its smaller surface area.
AB - CoMo on Al2O3 catalyst prepared by spray pyrolysis method was found in the form of spheres of 0.5-1.2 μm, which consisted of tiny primary particles of ca. 10-20nm diameter. The materials shows comparable activity to those of commercial catalysts in HDS of straight run gas oil, in particular, refractory 4,6-dimethyldibenzothiophene (4,6-DMDBT). Weaker interactions between CoMo and Al2O3 are suggested by temperature-programmed reduction (TPR), Raman spectroscopy, to give more active species than those over the impregnated catalysts. This accounts for its comparable activity in spite of its smaller surface area.
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U2 - 10.1016/j.apcata.2003.10.019
DO - 10.1016/j.apcata.2003.10.019
M3 - Article
AN - SCOPUS:1842507932
SN - 0926-860X
VL - 260
SP - 229
EP - 236
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
IS - 2
ER -