Abstract
Catalysts containing 5 wt.% Ni supported on SiO 2TiO 2 binary oxide (differing in the method of preparation and TiO 2 content) were applied for hydrogenation of aromatic hydrocarbons. The performance of the catalysts was tested in hydrogenation of toluene and diesel oil fraction. It was found that deposition of TiO 2 on silica by using the so-called TIPOT-method leads to the supports improving the catalytic activity of Ni/SiO 2TiO 2 catalysts. Experimental results indicated that for support prepared by this method, TiO 2 exist in the form of anatase. It was found that interaction between nickel and TiO 2 in a form of anatase was considerably weaker than in the case of TiO 2 in the form of rutile. The differences in reducibility of catalysts calcinated and re-oxidated at different temperatures were discussed.
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