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Dissociation of dihydrogen and hydrogen sulfide over a sulfided NiMo-alumina catalyst as evidenced by D2S-H2 isotopic exchange

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Abstract

To investigate the possible role of surface sulfur in the activation of dihydrogen, the reaction of D2S with H2 was carried out at 423 K on a presulfided NiMo-Al2O3 catalyst. The incorporation of D atoms in H2 shows that the catalyst is capable of dissociating H2S and H2 into species which by recombination make the exchange of hydrogen atoms possible between these molecules. This can be considered as evidence of the involvement of surface sulfur in the activation of dihydrogen.

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Authors and Affiliations

  1. URA CNRS 350, Catalyse en Chimie Organique, Université de Poitiers, 40, avenue du Recteur Pineau, 86022, Poitiers Cedex, France

    P. d'Araujo, C. Thomas, L. Vivier, D. Duprez & G. Pérot

  2. Institut Français du Pétrole, BP311, 92506, Rueil-Malmaison Cedex, France

    S. Kasztelan

Authors
  1. P. d'Araujo
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  2. C. Thomas
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  3. L. Vivier
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  4. D. Duprez
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  5. G. Pérot
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  6. S. Kasztelan
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d'Araujo, P., Thomas, C., Vivier, L. et al. Dissociation of dihydrogen and hydrogen sulfide over a sulfided NiMo-alumina catalyst as evidenced by D2S-H2 isotopic exchange. Catal Lett 34, 375–378 (1995). https://doi.org/10.1007/BF00806887

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  • DOI: https://doi.org/10.1007/BF00806887

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