Modeling of dibenzothiophene oxidative desulfurization using response surface methodology

The effect of reaction temperature, mixing speed and oxidant to catalyst volume ratio, including their interactions on the oxidative desulfurization of dibenzothiophene by using response surface methodology was studied. Hydrogen peroxide was used as oxidant and acetic acid as catalyst. The obtained...

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Bibliographic Details
Published in:Petroleum science and technology 2018-01, Vol.36 (1), p.68-74
Main Authors: Margeta, Dunja, Faraguna, Fabio, Sertić Bionda, Katica, Jukić, Ante
Format: Article
Language:English
Subjects:
Acetic acid
Catalysis
Catalysts
Conversion
Desulfurizing
Dibenzothiophene
Hydrogen peroxide
Mass transfer
oxidative desulfurization
Response surface methodology
sulphur removal
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Summary:The effect of reaction temperature, mixing speed and oxidant to catalyst volume ratio, including their interactions on the oxidative desulfurization of dibenzothiophene by using response surface methodology was studied. Hydrogen peroxide was used as oxidant and acetic acid as catalyst. The obtained model accurately predicts conversion of dibenzothiophene and the best conversion of 98.7% was observed at temperature 70°C, mixing speed of 1250 rpm and oxidant to catalyst volume ratio of 1:1. At high temperatures, a major limitation of the desulfurization process is the mass transfer and the high mixing speed is needed to achieve an efficient process.
ISSN:1091-6466
1532-2459
DOI:10.1080/10916466.2017.1403455