Catalysts for hydrodesulfurization prepared by the mechanical activation of molybdenite under cryogenic conditions

E. Mikubaeva, M. A. Uyimin, V. V. Maykov, S. Zhuravkov, L. A. Stasieva, A. V. Vosmerikov, I. Prosvirin, T. Fedushchak
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Abstract

Hydrodesulfurization catalysts are prepared via mechanical grinding of molybdenite under cryogenic conditions (80 K). Cryo-catalysts are characterized by X-ray phase analysis, X-ray photoelectron spectroscopy, and sedimentation analysis. The catalytic activity of the obtained cryo-samples is studied in a model hydrodesulfuration reaction of dibenzothiophene and in the course of hydrogenolysis of the components of the diesel fraction. It is shown that the activation of cryo-catalysts does not require the use of any sulfur-containing reagents.
低温条件下辉钼矿机械活化制备加氢脱硫催化剂
在低温条件下(80k)对辉钼矿进行机械研磨制备加氢脱硫催化剂。通过x射线物相分析、x射线光电子能谱分析和沉积分析对低温催化剂进行了表征。在二苯并噻吩模型加氢脱硫反应和柴油馏分组分氢解过程中,研究了所获得的低温样品的催化活性。结果表明,低温催化剂的活化不需要使用任何含硫试剂。
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