【摘要】 采用催化裂化柴油(LCO)和直馏减压蜡油(VGO)两种典型的稀释油，分别与减压渣油(VR)按不同比例混合后配成试验原料，研究了稀释油类型和掺入比例对渣油加氢反应的影响。结果表明：稀释油类型和掺入比例对脱硫率的影响不大；稀释油类型对降残炭率的影响不大，当稀释油掺入比例不低于50%时，降残炭率明显降低；稀释油类型和掺入比例对脱金属率的影响有显著差别，与掺炼VGO相比，VR中掺炼LCO更有利于促进加氢脱金属反应，掺入比例越高，掺炼LCO的脱金属率越高于掺炼VGO的脱金属率，脱金属率的影响因素包括稀释油黏度、芳香性等。与掺入VGO相比，掺入LCO作为稀释油时，对高等效双键数和高碳数的大分子沥青质的解聚效果更好，同时验证了沥青质向其他组分转化的可能性。更多还原

【Abstract】 Catalytic cracking diesel(LCO) and straight run vacuum gas oil(VGO) are used as typical diluted oil, which are mixed with vacuum residue(VR) in different proportions to prepare experimental feedstocks, respectivly. The effects of diluted oil type and blending ratio on the hydrogenation reaction of residual oil are studied. The results indicate that the type and proportion of diluted oil have little effect on the desulfurization rate. The type of diluted oil has little effect on the reduction of residual carbon rate. When the proportion of diluted oil is not less than 50%, the reduction of residual carbon rate is significantly reduced. There is a significant difference in the effect of the type and proportion of diluted oil on the demetalization rate. Compared with blending VGO, blending LCO in VR is more conducive to promoting the hydrogenation demetalization reaction. The higher the proportion of diluted oil, the higher the demetalization rate of blending LCO than blending VGO. The influencing factors of demetalization rate include viscosity and aromaticity of diluted oil. Compared with the addition of VGO, the addition of LCO as a diluted oil has a better effect on the depolymerization of high equivalent double bond number and high carbon number macromolecular asphaltene, verifying the phenomenon of asphaltene conversion to other components.更多还原