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采用正戊烷为溶剂,利用超临界溶剂抽提精密分离装置将沙特阿拉伯减压渣油抽提分离为16个窄馏份,对抽出油及减压渣油进行了较为全面的性质和组成分析。并在小型固定流化床上对上述原料进行催化裂化反应。结果表明,抽出率小于57%的抽出油其性质和组成符合催化裂化原料要求,可以直接进行催化裂化,若与减压馏份油混炼,效果更好,并得到了反应产品分布与原料性质及表征渣油特征的特性因数KH之间的关系。从而为合理加工沙特减压渣油提供了基础数据和依据。
Using n-pentane as the solvent, the Saudi Arabia vacuum residue was extracted and separated into 16 narrow fractions by using a supercritical solvent extraction precision separation device. The comprehensive properties and composition analysis of the extracted oil and the vacuum residue were carried out . And in a small fixed fluidized bed on the raw material for catalytic cracking reaction. The results show that the extracted oil whose extraction rate is less than 57% can meet the requirements of catalytic cracking feedstock directly and can be catalytically cracked directly. If it is mixed with vacuum distillation oil, its effect is better and the distribution of the reaction product and the nature of raw materials And the characterization of residual oil characteristics of the relationship between the factor KH. Which provided the basic data and basis for the rational processing of Saudi vacuum residue.