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利用超临界流体萃取分馏（ＳＦＥＦ）装置，获得了大港常压渣油、沙特阿拉伯轻质原油和中质原油的减压渣油的窄馏分，并分析了ＳＦＥＦ窄馏分的性质。在１００ｍｌ的高压反应釜内，利用破碎的工业ＮｉＭｏ／Ａｌ２Ｏ３加氢裂化催化剂，在氢初压８．５ＭＰａ、反应温度４００℃、反应时间２４０ｍｉｎ的条件下，研究了渣油窄馏分的催化加氢转化特性及其变化规律。结果表明，随ＳＦＥＦ馏分变重，其脱硫和脱氮效果明显变差，裂化反应生成汽油、柴油的能力逐渐降低，气体和焦炭产率逐渐增加。焦炭产率与原料的胶质沥青质含量和重油特性参数有密切关系，ＳＦＥＦ残渣对轻馏分的ＨＤＳ、ＨＤＮ反应具有一定的抑制作用。
A narrow cut of vacuum residue of Dagang atmospheric residue, Saudi Arabian light crude oil and medium crude oil was obtained by supercritical fluid extraction fractionation (SFEF), and the properties of SFEF narrow cut were analyzed. In a 100ml autoclave, the catalytic NiMo / Al2O3 hydrocracking catalyst was used to study the catalytic hydrogenation of a narrow residue of residuum at a hydrogen initial pressure of 8.5MPa, a reaction temperature of 400 ℃ and a reaction time of 240min. Transformation characteristics and its variation. The results showed that with the increase of SFEF fraction, the effect of desulfurization and denitrification was obviously deteriorated. The ability of cracking reaction to generate gasoline and diesel gradually decreased, and the yield of gas and coke increased gradually. The coke yield is closely related to the gypsum content and the heavy oil properties of the raw materials. The SFEF residue has a certain inhibitory effect on the HDS and HDN responses of the light fractions.