Soriano Rodríguez, MD.; Cecilia, JA.; Natoli, A.; Jimenez-Jimenez, J.; López Nieto, JM.; Rodriguez Castellon, E. (2015). Vanadium oxide supported on porous clay heterostructure for the partial oxidation of hydrogen sulphide to sulfur. Catalysis Today. 254:36-42. https://doi.org/10.1016/j.cattod.2014.12.022
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/64198
Title:
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Vanadium oxide supported on porous clay heterostructure for the partial oxidation of hydrogen sulphide to sulfur
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Author:
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Soriano Rodríguez, Mª Dolores
Cecilia, J. A.
Natoli, A.
Jimenez-Jimenez, J.
López Nieto, José Manuel
Rodriguez Castellon, Enrique
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UPV Unit:
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Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química
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Issued date:
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Abstract:
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Vanadium oxide supported on porous clay heterostructures (PCH) catalysts have been synthesized, characterized and evaluated in the selective oxidation of H2S to elemental sulfur. The catalysts were characterized by XRD, ...[+]
Vanadium oxide supported on porous clay heterostructures (PCH) catalysts have been synthesized, characterized and evaluated in the selective oxidation of H2S to elemental sulfur. The catalysts were characterized by XRD, adsorption-desorption of N-2 at -196 degrees C, diffuse reflectance UV-vis, H-2-TPR, Raman spectroscopy and XPS. The catalysts with higher vanadium content are more active and selective, exhibiting a H2S conversion close to 70% after 360h on stream with a high selectivity toward elemental sulfur and a low formation of undesired SO2. The catalysts with V2O5 crystallites have shown a higher activity and resistance to the deactivation. The analysis of the spent catalyst has revealed the formation of V4O9 crystals during the catalytic test, which has been reported as the active phase in the selective oxidation of the H2S. (C) 2015 Elsevier B.V. All rights reserved.
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Subjects:
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V4O9
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V2O5
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Porous clay heterostructure
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Vanadium oxide catalysts
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H2S
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Selective oxidation
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Copyrigths:
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Reserva de todos los derechos
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Source:
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Catalysis Today. (issn:
0920-5861
)
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DOI:
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10.1016/j.cattod.2014.12.022
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Publisher:
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Elsevier
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Publisher version:
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http://dx.doi.org/10.1016/j.cattod.2014.12.022
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Project ID:
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info:eu-repo/grantAgreement/MINECO//CTQ2012-37925-C03-01/ES/CATALIZADORES PARA LA ENERGIA Y EL MEDIOAMBIENTE: ACTIVACION SELECTIVA DE ENLACES S-H Y C-H/
info:eu-repo/grantAgreement/MINECO//CTQ2012-37925-C03-03/ES/Catalizadores para la energía y el medio ambiente: hidrodesulfuración e hidrodeoxigenación/
info:eu-repo/grantAgreement/Junta de Andalucía//P12-RNM-1565/
info:eu-repo/grantAgreement/MICINN//MAT2010-19837-C06-05/ES/SINTESIS, CARACTERIZACION Y PROCESADO DE MATERIALES PARA BATERIAS Y PILAS DE COMBUSTIBLE/
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Thanks:
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The authors would like to thank the DGICYT in Spain (Projects CTQ2012-37925-C03-01, CTQ2012-37925-C03-03 and FEDER funds, and MAT2010-19837-C06-05) and project of Excellence of Junta de Andalucia (project P12-RNM-1565) for ...[+]
The authors would like to thank the DGICYT in Spain (Projects CTQ2012-37925-C03-01, CTQ2012-37925-C03-03 and FEDER funds, and MAT2010-19837-C06-05) and project of Excellence of Junta de Andalucia (project P12-RNM-1565) for financial support. A. Natoli thanks to SECAT (Spain) for a grant.
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Type:
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Artículo
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