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应用ＴＲＰ、ＸＰＳ及ＸＲＤ等技术研究了用浸渍法制备的Ｎｉ／Ａｌ２Ｏ３、Ｍｏ／Ａｌ２Ｏ３和Ｍｏ－Ｎｉ／Ａｌ２Ｏ３３种催化剂的还原性能，并将Ｍｏ－Ｎｉ／Ａｌ２Ｏ３双金属催化剂与工业化的Ｍｏ－Ｃｏ／Ａｌ２Ｏ３和Ｗ－Ｎｉ／Ａｌ２Ｏ３催化剂进行了比较。结果表明：在Ｍｏ－Ｎｉ／Ａｌ２Ｏ３中，ＭｏＯ３呈高度分散状态，ＮｉＯ的加入减弱了Ｍｏ与载体间的强相互作用，并在催化剂表面形成了两种易还原的复合物，大大降低了还原温度。活性评价结果表明：催化剂的ＴＰＲ特性与加氢脱硫活性有很好的对应关系。Ｎｉ的促进还原和提高活性的功能，可以用氢的溢流机理来解释。
The reduction performance of Ni / Al2O3, Mo / Al2O3 and Mo-Ni / Al2O33 catalysts prepared by impregnation method was investigated by TRP, XPS and XRD techniques. The effects of Mo-Ni / Al2O3 bimetallic catalyst and commercial Mo-Co / Al2O3 and W-Ni / Al2O3 catalysts were compared. The results show that the MoO3 is highly dispersed in Mo-Ni / Al2O3. The addition of NiO weakens the strong interaction between Mo and the support, and forms two easily reducible complexes on the surface of the catalyst, greatly reducing the reduction temperature . The results of the activity evaluation show that the TPR characteristics of the catalyst have a good correspondence with the hydrodesulfurization activity. The function of Ni to promote reduction and increase activity can be explained by the hydrogen overflow mechanism.