Developing more effective catalysts for the hydrodesulfurization (HDS) process has gained more importance in recent decades to produce ultraclean fuel. In the current study, a novel carbon covered alumina (CCA) was prepared as a support for the Ni₂P catalyst for the HDS reaction of dibenzothiophene (DBT). The prepared composites were characterized by using Brunauer-Emmett-Teller (BET), powder X-ray diffraction (XRD), scanning electron microscope (SEM), thermogravimetric analysis (TGA) and X-ray photoelectron spectroscopy (XPS). The catalytic activity of the Ni₂P catalysts supported on carbon covered alumina (CCA) was tested and compared with the Ni₂P catalysts supported on alumina. As compared to Ni₂P/CCA₀ (72.1%), the DBT conversion of Ni₂P/CCA₃ (96.2%) had an increase by 24.1%. The incorporation of carbon could increase the catalytic activity by promoting the formation of active Ni₂P phase without AlPO₄ and leading to the better dispersion of Ni₂P on the surface of support. And the BP selectivity was slightly enhanced after the introduction of carbon layer.

在近几十年中，开发用于加氢脱硫（HDS）工艺的更有效的催化剂在生产超净燃料方面变得越来越重要。在当前的研究中，制备了一种新型的碳包覆氧化铝（CCA），作为二苯并噻吩（DBT）HDS反应的Ni ₂ P催化剂的载体。通过使用Brunauer-Emmett-Teller（BET），粉末X射线衍射（XRD），扫描电子显微镜（SEM），热重分析（TGA）和X射线光电子能谱（XPS）来表征所制备的复合材料。测试了负载在碳覆盖氧化铝（CCA）上的Ni ₂ P催化剂的催化活性，并将其与负载在氧化铝上的Ni ₂ P催化剂进行了比较。与Ni ₂ P / CCA _0相比（22.1％），Ni ₂ P / CCA ₃（96.2％）的DBT转化率提高了24.1％。碳的引入可通过促进没有AlPO ₄的活性Ni ₂ P相的形成并提高Ni ₂ P在载体表面的分散性而提高催化活性。引入碳层后，BP选择性略有提高。