Aerobic Oxidative Desulfurization of Liquid Fuel Catalyzed by P–Mo–V Heteropoly Acids in the Presence of Aldehyde
| Autor: | Rana Yahya, Rachel Hindle, Reem Ghubayra, Ivan V. Kozhevnikov, Elena F. Kozhevnikova |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Dodecane liquid fuel Chemical technology aerobic oxidative desulfurization heteropoly acid TP1-1185 Heterogeneous catalysis Aldehyde Catalysis Sulfone Flue-gas desulfurization Benzaldehyde chemistry.chemical_compound Chemistry heterogeneous catalysis chemistry Dibenzothiophene dibenzothiophene Physical and Theoretical Chemistry QD1-999 Nuclear chemistry |
| Zdroj: | Catalysts, Vol 11, Iss 988, p 988 (2021) Catalysts Volume 11 Issue 8 |
| ISSN: | 2073-4344 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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