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SO2 Oxidation Catalyst Model Systems Characterized by Thermal Methods

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Abstract

The molten salts M2S2O7 and MHSO4, the binary molten salt systems M2S2O7—MHSO4 and the molten salt-gas systems M2S2O7—V2O5 and M2S2O7—M2SO4—V2O5 (M = Na, K, Rb, Cs) in O2, SO2 and Ar atmospheres have been investigated by thermal methods like calorimetry, Differential Enthalpic Analysis (DEA) and Differential Scanning Calorimetry (DSC). Fundamental thermodynamic data like temperatures and molar heats of solid--solid transition and fusion, phase diagrams, heat capacities of solids and liquids, heat of mixing and heats of complex formation have been obtained and the results are discussed in relation to the mechanism of SO2 oxidation by V2O5 based industrial catalysts.

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Authors and Affiliations

  1. Faculté des Sciences St Jérôme, Laboratoire TECSEN, UMR-CNRS 6122, Avenue Escadrille Normandie Niemen, 13397, Marseille, Cedex 20, France

    G. Hatem

  2. Technopôle de Chateau-Gombert, Institut Universitaire des Systemes Thermiques Industriels, rue Enrico Fermi 5, 13453, Marseille, Cedex 13, France

    G. Hatem, M. Gaune-Escard & R. Fehrmann

  3. Department of Chemistry, Technical University of Denmark, DK-2800, Lyngby, Denmark

    K.M. Eriksen

  4. ICAT (Interdisciplinary Research Center for Catalysis), Denmark

    K.M. Eriksen

Authors
  1. G. Hatem
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  2. K.M. Eriksen
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  3. M. Gaune-Escard
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  4. R. Fehrmann
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Hatem, G., Eriksen, K., Gaune-Escard, M. et al. SO2 Oxidation Catalyst Model Systems Characterized by Thermal Methods. Topics in Catalysis 19, 323–331 (2002). https://doi.org/10.1023/A:1015392913498

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