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Kinetics of Triphase Extractive Oxidative Desulfurization of Benzothiophene with Molecular Oxygen Catalyzed by HPA-5

Title data

Claußnitzer, Johannes ; Bertleff, Benjamin ; Korth, Wolfgang ; Albert, Jakob ; Wasserscheid, Peter ; Jess, Andreas:
Kinetics of Triphase Extractive Oxidative Desulfurization of Benzothiophene with Molecular Oxygen Catalyzed by HPA-5.
In: Chemical Engineering & Technology. Vol. 43 (2020) Issue 3 . - pp. 465-475.
ISSN 1521-4125
DOI: https://doi.org/10.1002/ceat.201900448

Project information

Project financing: Deutsche Forschungsgemeinschaft

Abstract in another language

The triphasic aerobic extractive desulfurization of benzothiophene (BT) using an aqueous H8PV5Mo7O40 solution as catalyst and O2 as oxidant was investigated. A time-resolved analysis of all reaction products in the gas, organic and aqueous phase, is given. The organic sulfur in BT is mainly converted to sulfuric acid. Mass transport limitations can be excluded. The reaction orders are 1 with regard to BT, and 0.5 both for HPA-5 and O2. Calculated data derived from this mechanism with a power law kinetic approach show good agreement to the experimental data for conversions below 60 \%. At higher BT conversions, significant deviations are found, suggesting that acidic products formed in the BT oxidation affect the catalyst and therefore the initial kinetics of the BT oxidation.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Aerobic extractive oxidative desulfurization; Benzothiophene; Kinetic model; Polyoxometalates; Sulfate
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Chemical Engineering
Faculties > Faculty of Engineering Science > Chair Chemical Engineering > Chair Chemical Engineering - Univ.-Prof. Dr.-Ing. Andreas Jess
Research Institutions > Research Units > ZET - Zentrum für Energietechnik
Faculties
Research Institutions
Research Institutions > Research Units
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 540 Chemistry
600 Technology, medicine, applied sciences > 600 Technology
600 Technology, medicine, applied sciences > 620 Engineering
600 Technology, medicine, applied sciences > 660 Chemical engineering
Date Deposited: 19 Mar 2020 08:36
Last Modified: 16 Sep 2020 07:58
URI: https://eref.uni-bayreuth.de/id/eprint/54644