Ultrasound assisted oxidative desulfurization of marine fuels on MoO3/Al2O3 catalyst

Houda, S.; Lancelot, Christine; Blanchard, Pascal; Poinel, L.; Lamonier, Carole

Document type :

Article dans une revue scientifique: Article original

DOI :

10.1016/j.cattod.2020.10.013

Permalink :

http://hdl.handle.net/20.500.12210/62031

Title :

Ultrasound assisted oxidative desulfurization of marine fuels on MoO3/Al2O3 catalyst

Author(s) :

Houda, S. [Auteur]
Segula Technologies [France]
Unité de Catalyse et Chimie du Solide - UMR 8181 [UCCS]
Lancelot, Christine [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Blanchard, Pascal [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181
Poinel, L. [Auteur]
Segula Technologies [France]
Lamonier, Carole [Auteur]

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Journal title :

Catalysis Today

Abbreviated title :

Catal. Today

Volume number :

377

Pages :

221-228

Publisher :

Elsevier

Publication date :

2021-10-01

ISSN :

0920-5861

English keyword(s) :

Oxidative desulfurization
marine fuels
ultrasounds
extraction

HAL domain(s) :

Chimie/Catalyse

English abstract : [en]

Oxidative desulfurization (ODS) was applied to three marine fuels with viscosities between 380 and 700 cSt (centistokes) and sulfur contents between 0.79 and 3.27 wt.%, using a MoO3/Al2O3 catalyst. H2O2 was chosen as ...
Show more >Oxidative desulfurization (ODS) was applied to three marine fuels with viscosities between 380 and 700 cSt (centistokes) and sulfur contents between 0.79 and 3.27 wt.%, using a MoO3/Al2O3 catalyst. H2O2 was chosen as oxidizing agent with a low oxidant to sulfur ratio of 3, for economic and environmental reasons. Global sulfur removal was obtained after extraction of sulfones by dimethylformamide. Oxidation efficiency was evaluated by monitoring the conversion of alkyl-benzothiophenes and dibenzothiophene molecule by gas chromatography (GC) with a sulfur specific detector. Applying ultrasounds prior to oxidation was found to significantly enhance conversions and sulfur removal, the effect being more pronounced when initial efficiency was low, that is for more refractory molecules and heavier fuels. Ultrasound assisted ODS (UAOD) was effective on raw fuels with initial viscosity below 700 cSt. Indeed, dilution decreased the viscosity of the fuels, allowing reaction to be effective even on initially very heavy fuels. The presence of asphaltenes dissolved or precipitated in the feed did not affect the conversion of Cx-BTs and DBT significantly, with only slight variations of global sulfur removal rates. Global desulfurization rates between 60 and 80 % were obtained, clearly showing the efficiency of UAOD applied to complex matrices such as marine fuels.Show less >

Language :

Anglais

Audience :

Internationale

Popular science :

Non

Administrative institution(s) :

CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille

Collections :

Unité de Catalyse et Chimie du Solide (UCCS) - UMR 8181

Research team(s) :

Catalyse pour l’énergie et la synthèse de molécules plateforme (CEMOP)

Submission date :

2022-03-24T09:02:30Z
2023-05-04T14:36:18Z
2023-12-05T15:08:24Z

Files

Houda Catal Today 377 2021 221.pdf
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Version	Link	Modification date
4	20.500.12210/62031*	2023-12-05T15:04:31Z
2	20.500.12210/62031.2	2023-05-04T14:32:17Z
1	20.500.12210/62031.1	2022-03-24T09:02:30Z

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Ultrasound assisted oxidative desulfurization ...

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