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通过反应活性评价、X射线衍射、程序升温还原、动态氧吸附等实验手段,考察了灼烧温度、预还原温度、硫化温度、氧化处理等活化条件对Co-Mo-Ti/Al_2O_3加氢脱硫催化剂性质的影响。实验表明,灼烧温度主要影响活性组分在载体表面的分散态,硫化温度既影响活性中心的数目也影响其性质,预还原温度和氧化处理主要影响催化剂的活性中心的数目。
The effect of activation conditions such as burning temperature, pre-reduction temperature, curing temperature and oxidation treatment on the catalytic activity of Co-Mo-Ti / Al_2O_3 hydrodesulfurization catalyst was investigated by means of reaction activity evaluation, X-ray diffraction, temperature programmed reduction and dynamic oxygen adsorption The nature of the impact. Experiments show that the burning temperature mainly affects the dispersed state of the active component on the surface of the carrier. The curing temperature affects not only the number of active centers but also the properties of the active components. The prereduction temperature and the oxidation mainly affect the number of active centers of the catalysts.