English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/20516
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Highly efficient deep desulfurization of fuels by chemical oxidation

AutorCapel Sánchez, María del Carmen ; Pérez Presas, Patricia ; Campos Martín, José Miguel ; García Fierro, José Luis
Palabras claveLiquid phase reactions
ODS
Oxidation
Hydrogen peroxide
Fecha de publicación1-feb-2010
SerieCatalysis Today
CATTOD6538
ResumenThis paper describes the oxidation of several model S-containing molecules with hydrogen peroxide in L–L phase system using a heterogeneous catalyst under atmospheric pressure in the 333-353 K temperature range. Molybdenum and tungsten compounds are prepared by anion exchange with alkylammonium derivatives covalently anchored to silica gel. These solids are robust heterogeneous catalysts able to activate selectively hydrogen peroxide to remove sulfur compounds via oxidation (ODS). The influence of several reaction variables (the support, the reaction temperature, the nature of the substrate, the solvent, the molar ratio of the oxidant (H2O2), the S-containing molecule, the catalysts nature and the reuse of the catalysts) on the performance was examined. The potential of this methodology is illustrated by the complete S-removal from a 0.2 wt% dibenzothiophene mixture at 353 K in less than 1 h of reaction. Molybdenum catalysts exposed to hydrogen peroxide form peroxomolybdates moieties which are more active than acid precursors. The activated Mo catalysts are very active in ODS reaction and can be reused four times without lose of activity.
Versión del editor10.1016/j.cattod.2010.01.047
URIhttp://hdl.handle.net/10261/20516
DOI10.1016/j.cattod.2010.01.047
Aparece en las colecciones: (ICP) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
CATTOD-D-09-00334 rev.pdf181,44 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 

Artículos relacionados:


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.