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Ti- and Al-containing MCM-41 materials, with a Si/M (M=Al(Ti)) molar ratio equal to 8, were used as supports for preparing NiMo HDS catalysts. On the surface of the MCM-41 based catalysts, agglomerations of the Mo oxo-species were observed. The incorporation of Ti and Al into the silica structure visibly enhanced the interactions between NiMo oxides phase and the mesoporous support. The results of...
Reducibility, sulphidability and hydrodesulphurisation (HDS) activity of molybdenum and molybdenum-nickel catalysts are related to the preparation method of alumina-titania supports. Supports containing 15wt.% of titanium dioxide were prepared by hydrolysis of TiCl 4 on alumina surfaces (impregnation method) and by the coprecipitation method. The activity of the catalysts was investigated...
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