【摘要】 本文对我国十余种原油中减压渣油的化学组成进行了研究,测定了它们的元素组成以及饱相分,轻,中、重芳烃,轻、中、重胶质,沥青质和蜡的含量。数据说明:它们的氢碳比不低,一般在1.6(原子比)左右;硫含量不高,大多小于1％;氮含量较高,在1％左右;庚烷沥青质的含量很少,而胶质的含量普遍较高,几乎占渣油的一半。更多还原

【Abstract】 The elementary composition of vacuum residua of several chinese crude oils have been determined. After solvent precipitation of asphaltenes, the maltenes were separated by liquid-solid adsorption chromatography into saturates, mono-, di-, polynuclear aromatics, and three subfractions of resins. The data show that the H/C atomic ratios of most of the residua are about 1.6, the sulfur contents are relatively low(<1%), and the nitrogen contents are high(～1%). The resins amount near half of the residua while the contents of heptane asphaltene are quite low (<3%).更多还原