【摘要】 采用正庚烷和正丁醇依次沉降残渣油，随后用氧化铝液体色谱分离的方法建立了一套１次能将２０ｇ以上残渣油分离成八个组分（饱和烃、轻芳烃、中芳烃、重芳烃、轻胶质、中胶质、硬胶质和沥青质）的实验方法，得到了大庆减压渣油、鲁宁管输减压渣油和辽河减压渣油的组分分离结果。用元素分析、相对分子质量测定和￣１Ｎ－ＮＭＲ波谱的结果和Ｂｒｏｗｎ－Ｌａｎｄｅｒ法计算了残渣油各组分的结构参数。结果表明，分离得到的各个组分在结构上存在着明显差异。更多还原

【Abstract】 An experimental method,in which about more than 20 g feedstock was used, wasestablished for separating vacuum residue（VR ）.The VR of Daqing,Guanshu and Liaohe wereseparated into eight-fractions respectively by precipitation with n-heptane and n-butanol and liq-uid chromatography with Al₂O₃ column. The eight-fractions were called Saturates,light , middleand heavy aromatics,light,middle and heavy resins and asphltene.The structural parameters ofeight-fractions of three VR were calculated by the Brown-Lander mothed according to the resultsof relative molecular weight,elemental analysis and H-NMR,the results indicated that eachfraction was substantially different in structure.更多还原