Sabry Shendy - Academia.edu (original) (raw)
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Università degli Studi di Milano - State University of Milan (Italy)
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Papers by Sabry Shendy
Journal of Alloys and Compounds, 2010
The effect of the reduction conditions on the physicochemical and catalytic properties of Ni 2 P/... more The effect of the reduction conditions on the physicochemical and catalytic properties of Ni 2 P/SiO 2 catalysts was studied. The catalysts were prepared by impregnating silica with a solution of nickel acetate and diammonium hydrogen phosphate followed by drying, calcina tion, and temperature programmed reduction. The Ni 2 P/SiO 2 catalysts were reduced prior to hydrodeoxygenation (HDO) of methyl palmitate in the catalytic reactor (in situ) at tempera tures of 550, 600, and 650 °С for 3 h and at 600 °С for 1 and 6 h. The reduction temperature and reduction time were shown to affect the conversion of methyl palmitate, and the optimal reduction conditions of the Ni 2 P/SiO 2 catalysts were found. The Ni 2 P/SiO 2 catalyst synthe sized according to a widely used preparation method, including steps of passivation and re reduction at 450 °С in addition to the reduction step, is inferior in activity to the samples prepared in situ.
Journal of Alloys and Compounds, 2010
The effect of the reduction conditions on the physicochemical and catalytic properties of Ni 2 P/... more The effect of the reduction conditions on the physicochemical and catalytic properties of Ni 2 P/SiO 2 catalysts was studied. The catalysts were prepared by impregnating silica with a solution of nickel acetate and diammonium hydrogen phosphate followed by drying, calcina tion, and temperature programmed reduction. The Ni 2 P/SiO 2 catalysts were reduced prior to hydrodeoxygenation (HDO) of methyl palmitate in the catalytic reactor (in situ) at tempera tures of 550, 600, and 650 °С for 3 h and at 600 °С for 1 and 6 h. The reduction temperature and reduction time were shown to affect the conversion of methyl palmitate, and the optimal reduction conditions of the Ni 2 P/SiO 2 catalysts were found. The Ni 2 P/SiO 2 catalyst synthe sized according to a widely used preparation method, including steps of passivation and re reduction at 450 °С in addition to the reduction step, is inferior in activity to the samples prepared in situ.