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Calcined CoMo/γ-Al2O3 catalysts were modified by citric acid (CA) with different CA/Co ratios and the corresponding structure evolutions were systematically characterized. Then combined with HDS activity results, potential redispersion effects of CA were suggested: (i) weaken the MoO3-Al2O3 interaction via competitive interacting with the OH groups of alumina surface to realize the redispersion of...
The effect of sulfidation atmosphere (H 2 S/H 2 and H 2 S/N 2 ) on the morphology of (Co)MoS 2 particles supported on γ-Al 2 O 3 was studied and the prepared catalysts were evaluated in selective hydrodesulfurization (HDS) of FCC gasoline. It was found that the selectivity of the CoMo/γ-Al 2 O 3 catalysts sulfided in H 2 ...
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