用于减压瓦斯油分析的高达正C60的烃类的高温二维气相色谱法。
High-temperature two-dimensional gas chromatography of hydrocarbons up to nC60 for analysis of vacuum gas oils.
作者信息
Dutriez Thomas, Courtiade Marion, Thiébaut Didier, Dulot Hugues, Bertoncini Fabrice, Vial Jérôme, Hennion Marie-Claire
机构信息
Institut Français du Pétrole, BP3, 69360 Solaize, France.
出版信息
J Chromatogr A. 2009 Apr 3;1216(14):2905-12. doi: 10.1016/j.chroma.2008.11.065. Epub 2008 Nov 30.
In a tense energetic context, the characterization of heavy petroleum fractions becomes essential. Conventional comprehensive two-dimensional gas chromatography (2D-GC or GCxGC) is widely used for middle distillates analysis, but only a few applications are devoted to these heavier fractions. In this paper, it is shown how the optimization of GCxGC separation allowed the determination of suitable high-temperature (HT) conditions, adjusting column properties and operating conditions. 2D separations were evaluated using 2D separation criteria and a new concept of 2D asymmetry (As(2D)). New HT conditions allowed the extension of GCxGC range of applications to heavier hydrocarbons, up to nC(60). A first application of high-temperature two-dimensional gas chromatography (HT-2D-GC) to a full vacuum gas oil (VGO) feed stock is described. Comparisons with other standardized methods illustrate the high potential of HT-2D-GC for heavy fractions analysis.
在紧张的能源背景下，重质石油馏分的表征变得至关重要。传统的全二维气相色谱法（2D-GC或GCxGC）广泛用于中间馏分的分析，但仅有少数应用针对这些较重的馏分。本文展示了如何通过优化GCxGC分离来确定合适的高温（HT）条件、调整色谱柱性能和操作条件。使用二维分离标准和二维不对称性（As(2D)）的新概念对二维分离进行了评估。新的高温条件使GCxGC的应用范围扩展到了更重的烃类，直至nC(60)。描述了高温全二维气相色谱法（HT-2D-GC）在全减压瓦斯油（VGO）原料上的首次应用。与其他标准化方法的比较表明了HT-2D-GC在重质馏分分析方面的巨大潜力。
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