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ankang276

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With naphthalene as reactant, an increased Mo2C loading increased conversion up to a 20 wt.% Mo2C loading,whereas the selectivity to hydrogenation and RO
products remained relatively constant. The results from this study also
demonstrated that the catalysts underwent significant deactivation
during reaction with naphthalene. Carbon deposition (coke formation)
over the acidic HY support was identified as the main cause of the fast
deactivationwith naphthalene as reactant . Reduced acidity of the HY
support, as a consequence of increased Mo2C loading decreased the
catalyst deactivation. These results were described in terms of a
bimolecular reactionmechanismon acid sites that led to coke formation
competing with a monomolecular reaction mechanism on metal and
acid sites that yield hydrogenation and RO products .

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ankang276(½ð±Ò+35, ·­ÒëEPI+1): 2011-08-07 09:35:09
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