This study investigated the characteristics of slurry-phase hydrocracking of vacuum residue (VR > 524 °C) at a high conversion (40–95 wt.%) with a change of reaction temperatures and concentrations of the dispersed molybdenum (Mo Conc. 100–2000 wt.ppm) catalyst. Experiments were carried out with an initial hydrogen pressure of 80 bar (at 80 °C) at a reaction temperature from 385 to 440 °C for four hours in a batch reactor. As results, it was found that the sediment formation is mainly dependent on the VR conversion by the reaction temperature and started over 70 wt.% of VR conversion. Up to 70–80 wt.% of VR conversion, the higher catalysts showed the higher asphaltene conversion and prevented the sediment formation at the boundary of its formation, but it didn’t show any effect over 80 wt.% of VR conversion anymore. Based on the analysis of the structural change and ξ-potential of asphaltene from the liquid and sediment, and SARA compositional change in the liquid, the reason for sediment formation was explained.

这项研究研究了在高转化率（40–95 wt。％）下，随着反应温度和分散钼浓度（Mo Conc。100–Mo）的变化，真空残留物（VR> 524°C）的淤浆相加氢裂化的特征。 2000 wt.ppm）催化剂。在间歇反应器中，在80至bar的初始氢气压力（在80°C下）于385至440°C的反应温度下进行了四个小时的实验。结果发现，沉积物的形成主要取决于反应温度下的VR转化率，并且超过70wt。％的VR转化率开始。在VR转化率高达70-80 wt。％时，较高的催化剂显示出较高的沥青质转化率，并防止了其形成边界处的沉积物形成，但在VR转化率超过80 wt。％时，它不再显示任何作用。