For secondary middle distillates hydrodearomatization, NiMo/Al₂O₃ c catalysts with different surface loading of molybdenum were synthesized and studied. The feed used was a mixture of secondary middle-distillate gasoils, consisting of 85% vol. light catalytic cracking gasoil and 15% vol. delayed coking light gasoil. The catalytic properties of the prepared samples were defined in the temperature range of 340–380°C, at a total pressure of 10 MPa. An increase in the Mo load from 2.0 to 5.7 at/nm leads to a 1.5-fold decrease in the dispersion of the active phase particles, and so the catalytic properties change significantly. The hydrogenation and hydrodesulfurization rates over the synthesized catalysts decrease in the series 6-NiMo/Al₂O₃ > 4-NiMo/Al₂O₃ > 2-NiMo/Al₂O₃, symbate to the mass fraction of active metals. At the same time, the catalyst with a Mo loading of 4.4 at/nm demonstrated the maximum specific depth of hydrogenation.

针对二级中间馏分加氢脱芳构化，合成并研究了具有不同钼表面负载量的NiMo/Al ₂ O _{3 c 催化剂。}使用的进料是二级中间馏分柴油的混合物，由 85% vol. 组成。轻催化裂化瓦斯油和 15% vol. 延迟焦化轻柴油。制备的样品的催化性能定义在 340-380°C 的温度范围内，总压力为 10 MPa。Mo 负载量从 2.0 增加到 5.7 at/nm 会导致活性相颗粒分散度降低 1.5 倍，因此催化性能发生显着变化。_{6-NiMo/Al 2} O ₃系列合成催化剂的加氢和加氢脱硫率降低> 4-NiMo/Al ₂ O ₃ > 2-NiMo/Al ₂ O ₃，与活性金属的质量分数相配。同时，Mo负载量为4.4 at/nm的催化剂表现出最大的氢化比深度。