The role of 3D alumina foam support (Al-F) and titania-modified alumina foam support (Al-F-Ti-X, where X represents the weight ratio of Al-F/TiO₂) on the dispersion and catalytic activity of NiMo metals in the hydrodesulfurization (HDS) reaction of dibenzothiophene was studied in a batch reactor. The catalysts were characterized by X-ray diffraction (XRD), N₂ adsorption desorption isotherm, field emission scanning electron microscopy (FESEM), Fourier-transform infrared (FTIR) spectroscopy, temperature-programmed desorption (TPD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The Al-F and Al-F-Ti-10 dispersed the active metals better than the other supports, and more MoS₂ was formed on the Al-F-Ti-10 support. TiO₂ incorporation into Al-F decreased its surface area but also increased its surface acidity. The Al-F catalyst exhibited a relatively higher HDS activity (81% DBT conversion) over the conventional γ-Al₂O₃-supported NiMo catalyst (72% conversion). The modified Al-F-Ti-10 catalyst demonstrated the highest HDS activity of 97% DBT conversion after 4 h of reaction.

中文翻译：

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3D氧化铝泡沫载体在加氢脱硫应用中活性NiMoS相的形成和分散中的作用

3D氧化铝泡沫载体（Al-F）和二氧化钛改性的氧化铝泡沫载体（Al-F-Ti- X，其中X代表Al-F / TiO ₂的重量比）对NiMo的分散性和催化活性的作用在间歇反应器中研究了二苯并噻吩的加氢脱硫（HDS）反应中的金属。通过X射线衍射（XRD），N ₂吸附脱附等温线，场发射扫描电子显微镜（FESEM），傅立叶变换红外光谱（FTIR），程序升温脱附（TPD），透射电子显微镜（TEM）对催化剂进行了表征。 ）和X射线光电子能谱（XPS）。Al-F和Al-F-Ti-10与其他载体相比，分散的活性金属更好，并且MoS ₂含量更高在Al-F-Ti-10载体上形成。TiO ₂掺入Al-F减少了其表面积，但也增加了其表面酸度。在Al-F催化剂具有优于传统的γ-Al相对较高的HDS活性（81％DBT转化率）₂ ö ₃ -支持的NiMo催化剂（72％转化率）。反应4小时后，改性的Al-F-Ti-10催化剂显示出最高的HDS活性，DBT转化率为97％。