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Quantification of Hydrocarbons in Gas Oils by GCxGC-VUV : Comparison with other Techniques

Aleksandra Lelevic 1, 2 Christophe Geantet 2 Maxime Moreaud 1 Chantal Lorentz 2 Vincent Souchon 1 
2 AT - IRCELYON-Analyse thermique
IRCELYON - Institut de recherches sur la catalyse et l'environnement de Lyon
Abstract : Insight into the composition of middle distillates is essential to meet the requirements for product quality but also in terms of complying with ever more stringent environmental regulations. A newly introduced vacuum ultraviolet absorbance detector (VUV) possesses both quantitative and qualitative abilities and is amenable to hyphenation with comprehensive two-dimensional gas chromatography (GC×GC). It has good selectivity for hydrocarbon species and permits their differentiation even if they are not chromatographically separated. In this study, quantification of hydrocarbons in 14 gas oils coming from different origins was performed to evaluate the benefits of GC×GC-VUV for the analysis of middle distillates. Coelutions between hydrocarbon families were investigated and spectral decomposition was carried out for quantification of coeluted hydrocarbon families. Quantification obtained with GC×GC-VUV was compared with conventional techniques such as GC×GC-FID with prefractionation, MS method based on ASTM D2425, UV spectroscopic analysis, and bromine number. In general, good comparability was obtained between GC×GC-VUV and all the different techniques for major hydrocarbon families, however with a gain in time and/or information when using GC×GC-VUV. This demonstrates that GC×GC-VUV can be considered as a relevant tool for the detailed analysis of middle distillates, regardless of their origin.
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https://hal-ifp.archives-ouvertes.fr/hal-03821133
Contributor : Catherine Belli Connect in order to contact the contributor
Submitted on : Wednesday, October 19, 2022 - 2:11:44 PM
Last modification on : Thursday, November 3, 2022 - 3:59:23 AM

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  • HAL Id : hal-03821133, version 1

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Aleksandra Lelevic, Christophe Geantet, Maxime Moreaud, Chantal Lorentz, Vincent Souchon. Quantification of Hydrocarbons in Gas Oils by GCxGC-VUV : Comparison with other Techniques. Energy & Fuels, 2022, 36 (18), pp.10860-10869. ⟨hal-03821133⟩

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