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对炼油厂的催化油浆、重催油浆、催化重焦蜡和加氢尾油进行柱分离、元素分析和核磁共振分析 ,研究其氢碳原子比、芳香度与饱和烃加环烷烃、芳烃含量之间的关系。研究结果表明 :前三种油的氢碳原子比、芳香度与重质油的饱和烃加环烷烃、芳烃含量之间存在着良好的线性关系 ,可用线性方程来表示。加氢尾油主要含C2 0～C3 0的正构烷烃 ,芳烃含量小于 1% ,而芳香度大于催化重焦蜡 ,所以用芳香度来评价加氢尾油是不合适的
The column separation, elemental analysis and nuclear magnetic resonance analysis of the catalytic slurry, heavy oil slurry, catalytic heavy coke wax and hydrogenated tail oil of the refinery were carried out to study the relationship between hydrogen and carbon atomic ratio, aromaticity and saturated hydrocarbons plus cycloalkane, aromatics The relationship between content. The results show that there is a good linear relationship between the hydrogen-carbon atomic ratio and aromaticity of the first three oils and the saturated hydrocarbons plus naphthenes and aromatic hydrocarbons in heavy oil, which can be expressed by the linear equation. Hydrogenation tail oil mainly contains C2 0 ~ C3 0 n-paraffins, the aromatic content is less than 1%, and the aromaticity is greater than that of catalytic heavy coke wax. Therefore, it is unsuitable to evaluate the hydrogenation tail oil with aromaticity