Ternary sulfided NiMoW/Ti-HMS solids with varying Si/Ti ratio (e.g., 20, 40, 60) and with Ti incorporated via a post-synthesis method were evaluated in the hydrodesulfurization of dibenzothiophene. Ti-incorporation improved the catalytic activity of the samples up to 2.4 times compared to the sample without titanium and to a reference industrial catalyst. The performance was mainly associated with differences observed in the stacking and length and the dispersion of the active phase, this effect being stronger for the NiMoW/HMS-Ti 20 sample. The latter displayed the highest catalytic activity and sulfur removal via hydrogenation.

中文翻译：

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三元金属NiMoW / Ti-HMS介孔催化剂上的二苯并噻吩加氢脱硫

在二苯并噻吩的加氢脱硫中，评估了具有变化的Si / Ti比（例如20、40、60 ）并通过后合成方法掺入Ti的三元硫化NiMoW / Ti-HMS固体。与不含钛的样品和参比工业催化剂相比，掺钛可将样品的催化活性提高2.4倍。该性能主要与观察到的活性相的堆积，长度和分散度不同有关，对于NiMoW / HMS-Ti 20样品，这种影响更强。后者显示出最高的催化活性和通过氢化去除硫。