Abstract The complexity of the crude oil makes its compositional characterization a very challenging task. As a conventional way to characterize crude oil, SARA fractionation is based on the differences between the solubility and polarity of the four fractions: Saturates, Aromatics, Resins, and Asphaltenes. In this study, we present an improved method for SARA analysis: clay/alumina chromatography method. This method is three to four times faster compared to ASTM D2007 method and requires less solvent. The proposed system is practical for industrial application since the equipment is fairly inexpensive and could be easily assembled in any laboratory.

中文翻译：

---

一种快速可靠定量原油中饱和物、芳烃、树脂和沥青质的新实验方法

摘要 原油的复杂性使其成分表征成为一项非常具有挑战性的任务。作为表征原油的常规方法，SARA 分馏基于四种馏分的溶解度和极性之间的差异：饱和物、芳烃、树脂和沥青质。在本研究中，我们提出了一种改进的 SARA 分析方法：粘土/氧化铝色谱法。该方法比 ASTM D2007 方法快三到四倍，并且需要的溶剂更少。所提出的系统对于工业应用是实用的，因为该设备相当便宜并且可以在任何实验室中轻松组装。