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The hydroisomerization of n dodecane on bifunctional catalysts with mesostructured aluminosil icates as an active component has been studied. Aluminosilicates with an Si/Al atomic ratio of 5 to 48 have been prepared using hexadecylamine as a template. Catalyst supports contained 35 wt % mesoporous mate rial and 65 wt % γ Al 2 O 3 . The platinum loading of the catalysts was 0.5% of the support mass. It has been found that the catalysts based on mesoporous aluminosilicates with an Si/Al ratio of 10 and 22 exhibit the highest selectivity. In their presence, the conversion reaches 43-46 wt % with the selectivity for iso C 12 H 26 of more than 90%.

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