Study of the Size Distribution of Sulfur, Vanadium, and Nickel Compounds in Four Crude Oils and Their Distillation Cuts by Gel Permeation Chromatography Inductively Coupled Plasma High-Resolution Mass Spectrometry

Abstract : The size distribution of sulfur, vanadium, and nickel was determined for four crude oils and their distillation cuts using gel permeation chromatography (GPC) coupled to inductively coupled plasma high-resolution mass spectrometry (ICP HR MS). The results show a trimodal distribution of vanadium and nickel compounds in the crude oils, the atmospheric residues, and the vacuum residues and, for sulfur compounds, either a mono- or bimodal distribution depending upon the distillation cut considered. A correlation exists between the sulfur fraction retention times and the temperature cuts of the distillation for a temperature below 560 degrees C and also between the viscosity of the crude oils and the proportion of trapped sulfur compounds in a higher boiling temperature fraction. The thermic treatment applied for the distillation increases the aggregation of low- and medium-molecular-weight compounds of vanadium and nickel into higher molecular weight aggregates between the crude oil on the one hand and the atmospheric residue and vacuum residue on the other hand, especially when the crude oil has a high total sulfur content.
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Article dans une revue
Energy and Fuels, American Chemical Society, 2014, 28 (6), pp.3730-3737. 〈10.1021/ef500571f〉
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https://hal.univ-lorraine.fr/hal-01518900
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Soumis le : vendredi 5 mai 2017 - 15:29:16
Dernière modification le : mardi 24 juillet 2018 - 11:45:23

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Alain Desprez, Brice Bouyssiere, Carine Arnaudguilhem, Gabriel Krier, Alex Vernex-Loset, et al.. Study of the Size Distribution of Sulfur, Vanadium, and Nickel Compounds in Four Crude Oils and Their Distillation Cuts by Gel Permeation Chromatography Inductively Coupled Plasma High-Resolution Mass Spectrometry. Energy and Fuels, American Chemical Society, 2014, 28 (6), pp.3730-3737. 〈10.1021/ef500571f〉. 〈hal-01518900〉

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