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Molecular Analysis of Nitrogen Containing Compounds in Vacuum Gas Oils Hydrodenitrogenation by(Esi+/-)-FTICR-MS

Abstract : This paper is a part of a study on reactivity descriptors in vacuum gas oil hydrotreatment (VGO HDT). It aims to understand the differences in feeds of various process origins and the corresponding hydrotreated effluents on a molecular level. Four different vacuum gas oils were hydrotreated over a sulfided NiMo/Al2O3 catalyst at a wide range of temperatures and residence times in order to collect HDT effluents at a broad range of hydrodenitrogenation (HDN) conversions. Vacuum gas oils and HDT effluents have been analyzed by Fourier transform ion cyclotron resonance mass spectrometry (FTICR-MS) in positive ESI(+) and negative ESI(-) electrospray ionization modes to characterize the basic and neutral nitrogen-containing species and the subtleties of HDT transformations depending on the feedstock type.
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https://hal-ifp.archives-ouvertes.fr/hal-03660667
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Submitted on : Friday, May 6, 2022 - 10:20:13 AM
Last modification on : Wednesday, May 11, 2022 - 3:16:08 AM

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Polina Mikhaylova, Luis de Oliveira, Isabelle Merdrignac, Alexandra Berlioz-Barbier, Marouan Nemri, et al.. Molecular Analysis of Nitrogen Containing Compounds in Vacuum Gas Oils Hydrodenitrogenation by(Esi+/-)-FTICR-MS. Fuel, Elsevier, 2022, 323, pp.124302. ⟨10.1016/j.fuel.2022.124302⟩. ⟨hal-03660667⟩

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