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Qualitative and Quantitative Evaluation of Sulfur-Containing Compound Types in Heavy Crude Oil and Its Fractions

机译：重质原油及其级分中含硫复合型含硫复合型的定性和定量评价

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摘要

Detailed molecular analysis of complex mixtures such as crude oil and its fractions has been successfully covered by a number of groups during the past two decades. On the other side, the most glaring need is some type of method that allows quantitative analysis of a single class, compound species, or even individual compounds. Here, the problem is being complicated by the complexity of the sample and the need for individual response factors necessary for the analysis of single compounds in almost all analytical methods. This can be circumvented by using a method with uniform response like inductively coupled plasma-mass spectrometry. Sulfur is one of the most important heteroelements present in crude oil and its products due to stringent regulations. Quantification of sulfur by means of mass spectrometry has always been a challenging task. Here, we present the combination of a sulfur-selective chromatographic separation of crude oil and its fractions on a Pd-coated stationary phase with two-dimensional detection. Qualitative analysis by ultrahigh-resolution Orbitrap mass spectrometry allows a detailed understanding of individual compositions after chromatographic separation, while the quantitative data from inductively coupled plasma tandem mass spectrometry details the quantities of each part of the chromatogram. The combination of the results from both methods allows assigning three different types of sulfur species and their quantitative determination in extremely complex heavy crude oil fractions.
机译：在过去的二十年中，许多组的复杂混合物如原油及其级分的详细分子分析已成功覆盖。在另一边，最明显的需求是某种方法，允许单级，复合物种甚至单个化合物的定量分析。这里，通过样本的复杂性以及在几乎所有分析方法中分析单一化合物所需的个体响应因子的需要并发作用。这可以通过使用具有均匀响应的方法，如电感耦合等离子体质谱法一起避免。硫是原油及其产品中最重要的异质元素之一，由于严格的规定。借助于质谱法量化硫的定量一直是一个具有挑战性的任务。在这里，我们介绍了原油的硫选择性色谱分离和其级分的组合，其与二维检测的PD涂层固定相。通过超高分辨率壁图质谱法的定性分析允许在色谱分离后详细了解各个组合物，而来自电感耦合等离子体串联质谱的定量数据细节色谱图的每一部分的量。两种方法的结果组合允许在极其复合的重原油级分中分配三种不同类型的硫种类及其定量测定。

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  • 来源
    《Energy & fuels》 |2021年第10期|8723-8732|共10页
  • 作者

    Vetere Alessandro; Profrock Daniel; Schrader Wolfgang;

  • 作者单位

    Max Planck Inst Kohlenforsch D-45470 Mulheim Germany;

    Helmholtz Zentrum Hereon Inst Umweltchem Kustenraumes D-21502 Geesthacht Germany;

    Max Planck Inst Kohlenforsch D-45470 Mulheim Germany;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
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