Synthesis, characterization and hydrotreating activity of nanostructured systems on carbon supported vanadium
作者： Susana Pinto-Castilla , Santiago Marrero , Yraida Díaz , Joaquín L Brito , Pedro Silva
DOI: 10.1007/S11144-012-0476-7
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摘要: A novel synthesis route was designed to obtain highly active vanadium based catalysts. Three different activated carbons were used as supports (one of them being treated with ozone). The supported catalysts characterized by XRD, TEM, XPS and EPR. These systems tested in hydrotreating reactions (HDS, HDN hydrogenation). characterization results showed well dispersed nanoparticles. However, it evidenced that during the process, a carbide phase produced within oxides. Reactivity studies slightly better for HDS hydrogenation than commercial NiMoS catalyst, but not case reactions. reduction method proposed is potentially an excellent synthesize more conventional TPS method. Under reaction conditions, sulfide species coexist catalyst; sites probably remain intimately mixed sites.
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