Abstract Using the chromatography-mass spectrometric method of analysis the group hydrocarbon compositions of straight-run and hydro-dewaxed diesel fractions have been determined. The effects of hydrocarbons on the physicochemical and operational properties of the fractions were analyzed and compared with the requirements of the standard for winter diesel fuels. The molecular-mass distribution of normal paraffin hydrocarbons was considered in detail, as well as their relationship with the low-temperature properties of the fractions. The aromatic compounds were analyzed in the two-dimensional chromatography method. It was found that naphthalene hydrocarbons predominated in the straight-run diesel fraction, and benzene and indan derivatives dominated in the hydro-dewaxed fraction. It was proved by chromatographic analysis. For the straight-run and hydro-dewaxed diesel fractions optimal concentrations of a cetane-raising additive have been determined, which enable to achieve the requirements of standards for diesel fuels.

中文翻译：

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确定柴油馏分的碳氢化合物成分并评估它们对燃料操作特性的影响

摘要 使用色谱-质谱分析法测定了直馏和加氢脱蜡柴油馏分的组烃组成。分析了碳氢化合物对馏分物理化学和操作性能的影响，并与冬季柴油燃料标准的要求进行了比较。详细考虑了正链烷烃的分子量分布，以及它们与馏分低温特性的关系。芳族化合物采用二维色谱法进行分析。结果表明，直馏柴油馏分中以萘烃为主，加氢脱蜡馏分中以苯和茚满衍生物为主。经色谱分析证实。