Aerobic Oxidative Desulfurization of Liquid Fuel Catalyzed by P-Mo-V Heteropoly Acids in the Presence of Aldehyde

Ghubayra, Reem, Hindle, Rachel, Yahya, Rana, Kozhevnikova, Elena F ORCID: 0000-0001-8242-7945 and Kozhevnikov, Ivan V ORCID: 0000-0003-2453-5256 (2021) Aerobic Oxidative Desulfurization of Liquid Fuel Catalyzed by P-Mo-V Heteropoly Acids in the Presence of Aldehyde. CATALYSTS, 11 (8). p. 988.

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Official URL: http://dx.doi.org/10.3390/catal11080988

Abstract

<jats:p>Aerobic oxidative desulfurization (ODS) of model liquid fuel (dodecane spiked with dibenzothiophene (DBT)) was carried out in the presence of bulk and supported Keggin-type heteropoly acids H3+nPMo12-nVnO40 (HPA-n, n = 0–3) as heterogeneous catalysts and benzaldehyde as a sacrificial reductant. In the presence of bulk H4PMo11VO40 (HPA-1), 100% of DBT was removed from fuel (converted to DBT sulfone) at 60 °C and ambient air pressure. Multiple catalyst reuse without loss of activity was demonstrated. The ODS reaction was strongly inhibited by radical scavengers. An unbranched radical chain mechanism was proposed.</jats:p>

Item Type:	Article
Uncontrolled Keywords:	aerobic oxidative desulfurization, liquid fuel, dibenzothiophene, heteropoly acid, heterogeneous catalysis
Divisions:	Faculty of Science and Engineering > School of Physical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	03 Dec 2021 16:06
Last Modified:	15 Mar 2024 01:03
DOI:	10.3390/catal11080988
Open Access URL:	https://www.mdpi.com/2073-4344/11/8/988
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3144532