| abstract |
A preparation method of a high-activity hydrodesulfurization catalyst, the method uses a carbon-based material as a carrier, and the carbon-based material is subjected to surface modification; Hydrodesulfurization precursor solution, impregnating the modified carbon-based material in the precursor solution, impregnating the active component on the surface of the carrier, and then drying and calcining to obtain a carbon-based carbon-based material containing NiMo or CoMo or NiMo active components Hydrodesulfurization catalyst. In the present invention, the surface of the carbon material carrier can be enriched with hydroxyl groups by performing surface treatment, such as oxidizing acid oxidation or oxidizing gas treatment. Through the modulation of the treatment degree, the active components can be changed from single-layer dispersion to few-layer and multi-layer dispersion in the carrier. Further, the sulfidation of the NiMo component can be maximized, and the intrinsic activity of the hydrodesulfurization catalyst is substantially improved. |