Batch Oxidative Desulfurization of Model Light Gasoil over a Bimetallic Nanocatalyst

A novel AgO/ZnO/HY‐zeolite bimetallic nanocatalyst was designed and synthesized by an impregnation method. The purpose of this nanocatalyst was to remove dibenzothiophene as the primary sulfur content from a model light gasoil in a catalytic oxidative desulfurization (ODS) process. The characteristi...

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Bibliographic Details
Published in:Chemical engineering & technology 2021-09, Vol.44 (9), p.1708-1715
Main Authors: Abdulateef, Layth T., Nawaf, Amer T., Al-Janabi, Omer Yasin Thayee, Foot, Peter J. S., Mahmood, Qahtan A.
Format: Article
Language:English
Subjects:
Bimetals
Desulfurizing
Dibenzothiophene
Fourier transforms
Gas oil
HY‐Zeolite
Infrared spectroscopy
Nanocatalysts
Oxidative desulfurization
Silver oxide
Sulfur
Sulfur content
Zinc oxide
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Summary:A novel AgO/ZnO/HY‐zeolite bimetallic nanocatalyst was designed and synthesized by an impregnation method. The purpose of this nanocatalyst was to remove dibenzothiophene as the primary sulfur content from a model light gasoil in a catalytic oxidative desulfurization (ODS) process. The characteristics of the synthesized nanocatalyst were determined by Fourier transform IR spectroscopy, Brunauer‐Emmett‐Teller analysis, scanning electron microscopy, and X‐ray diffraction. The ODS study revealed high sulfur conversion under optimal ODS reaction conditions and very good reusability of the catalyst after recycling five times. Oxidative desulfurization (ODS) is an alternative to hydrodesulfurization for removing organic sulfur compounds such as dibenzothiophene (DBT) from fuel oils such as diesel fuel to avoid SOx emissions and acid rain. Herein, an AgO/ZnO/HY‐zeolite nanocatalyst synthesized by a simple impregnation method showed a high degree of DBT removal in the catalytic ODS of a light gasoil and good reusability.
ISSN:0930-7516
1521-4125
DOI:10.1002/ceat.202100027