A series of ceria promoted Ni2P catalysts were prepared and evaluated in dibenzothiophene hydrodesulfurization steam. These catalysts were characterized by X-ray diffraction, N2 adsorption–desorption, CO chemisorptions, and X-ray photoelectron spectroscopy. The results showed that the addition of ceria into the bulk Ni2P catalyst was conducive to the formation of the Ni2P phase and contributed to a higher surface area, leading to a better dispersion and smaller crystallite size of Ni2P particles. The CexNi2P catalysts showed higher dibenzothiophene hydrodesulfurization activity than Ni2P catalyst and the Ce0.09Ni2P catalyst showed the highest dibenzothiophene hydrodesulfurization activity. The Ce0.09Ni2P catalyst showed a dibenzothiophene hydrodesulfurization conversion of 94.5% at the reaction conditions of 320°C, 4.0 MPa, a H2/oil ratio of 500 (V/V), and a weight hourly space velocity of 8.0 h−1. The dibenzothiophene was mainly transformed through desulfurization pathway.

中文翻译：

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铈含量对二苯并噻吩在本体 Ni2P 催化剂上的结构和加氢脱硫性能的影响

在二苯并噻吩加氢脱硫蒸汽中制备并评价了一系列氧化铈促进的 Ni2P 催化剂。这些催化剂通过 X 射线衍射、N2 吸附-解吸、CO 化学吸附和 X 射线光电子能谱进行表征。结果表明，在本体 Ni2P 催化剂中加入二氧化铈有利于 Ni2P 相的形成，并有助于提高表面积，导致 Ni2P 颗粒更好的分散性和更小的晶粒尺寸。CexNi2P催化剂表现出比Ni2P催化剂更高的二苯并噻吩加氢脱硫活性，Ce0.09Ni2P催化剂表现出最高的二苯并噻吩加氢脱硫活性。Ce0.09Ni2P催化剂在320℃、4.0MPa的反应条件下，二苯并噻吩加氢脱硫转化率为94.5%，H2/油比为 500 (V/V)，重时空速为 8.0 h-1。二苯并噻吩主要通过脱硫途径转化。