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| Autore principale: | |
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| Natura: | Artículo científico |
| Lingua: | en |
| Pubblicazione: |
Universidad Nacional Autónoma de México
2018
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| Accesso online: | https://www.redalyc.org/articulo.oa?id=47471640002 https://www.redalyc.org/journal/474/47471640002/ https://www.redalyc.org/journal/474/47471640002/html/ https://www.redalyc.org/journal/474/47471640002/47471640002.epub https://www.redalyc.org/journal/474/47471640002/movil |
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Sommario:
- Tungsten based catalysts for oxidative desulfurization: surface species and partially reduced systems as key features to improve the activity Mauricio Lopez Luna Luis Cedeño-Caero Ingeniería H2 ODS TPR Alumina Tungsten oxide Tungsten oxide based catalysts for the oxidative desulfurization (ODS) process of dibenzothiophene compounds using H2O2 as oxidizing agent were studied. Catalysts were characterized by TPR-H2, SEM-EDS, XRD, N2-physisorption and Raman spectroscopy. Different surface tungsten oxide species were detected and related to the ODS activity, furthermore, the predominance of the surface tungsten oxide species was associated with the tungsten loading. Moreover, in some catalysts, WO3 crystals were detected and their role in the performance of the catalysts was studied too. Finally, the catalysts were partially reduced and tested in the ODS reaction, the reduced catalysts exhibited high activity and an improvement of H2O2 to sulfones yield. 2018 artículo científico 1665-6423 https://www.redalyc.org/articulo.oa?id=47471640002 https://www.redalyc.org/journal/474/47471640002/ https://www.redalyc.org/journal/474/47471640002/html/ https://www.redalyc.org/journal/474/47471640002/47471640002.epub https://www.redalyc.org/journal/474/47471640002/movil 10.22201/icat.16656423.2018.16.6.744 en http://www.redalyc.org/revista.oa?id=474 Journal of Applied Research and Technology application/pdf Universidad Nacional Autónoma de México Journal of Applied Research and Technology (México) Num.6 Vol.16