成品汽油组成及馏程与计算辛烷值的分布关系

发布时间：2018-03-15 18:34

  本文选题：汽油　切入点：组成　出处：《石油学报(石油加工)》2017年01期 　论文类型：期刊论文

【摘要】：根据汽油详细烃组成模拟计算了典型成品汽油不同馏分段的研究法辛烷值,获得了汽油馏分不同类型组分辛烷值和沸点分布的关系以及对样品辛烷值的贡献率。结果表明,不同类型组分辛烷值贡献率由大到小的顺序依次为芳烃、异构烷烃、烯烃、甲基叔丁基醚(MTBE)、环烷烃和正构烷烃。92#汽油辛烷值按照沸点的分布,呈现出两头大、中间小的特点。其中小于60℃的轻端馏分辛烷值的贡献主要来源于烯烃组分,大于120℃馏分段的辛烷值贡献主要来源于芳烃组分。90~120℃馏分有最低的辛烷值,60~90℃馏分有最低的辛烷值贡献率。加入一定量的烷基化汽油后,可以提高90~120℃馏分的辛烷值,改善汽油辛烷值的分布。
[Abstract]:According to the detailed hydrocarbon composition of gasoline, the research octane number of different fractions of typical finished gasoline was calculated, and the relationship between octane number and boiling point distribution of different types of gasoline fractions and the contribution rate to the octane number of the sample were obtained. The octane number contribution rates of different types of components are in the order of aromatics, iso-alkanes, alkenes, methyl tert-#china_person0# ether MTBEBEN, cycloalkanes and n-alkanes .92# gasoline octane numbers distributed according to boiling point, showing two big octane numbers. The contribution of octane number of light end fraction less than 60 鈩，

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