Agglomeration at the Micrometer Length Scale of Cobalt Nanoparticles in Alumina-Supported Fischer–Tropsch Catalysts in a Slurry Reactor

Authors

  • Dr. Diego Peña,

    1. Unité de Catalyse et de Chimie du Solide (UCCS), Université Lille 1-ENSCL-EC Lille, Bât. C3, Cite Scientifique, 59655 Villeneuve d'Ascq (France), Fax: (+33) 3-20-43-65-61
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  • Dr. Anne Griboval-Constant,

    1. Unité de Catalyse et de Chimie du Solide (UCCS), Université Lille 1-ENSCL-EC Lille, Bât. C3, Cite Scientifique, 59655 Villeneuve d'Ascq (France), Fax: (+33) 3-20-43-65-61
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  • Fabrice Diehl,

    1. IFP Energies Nouvelles, Rond-point de l'échangeur de Solaize, BP 3, 69360 Solaize (France)
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  • Vincent Lecocq,

    1. IFP Energies Nouvelles, Rond-point de l'échangeur de Solaize, BP 3, 69360 Solaize (France)
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  • Dr. Andrei Y. Khodakov

    Corresponding author
    1. Unité de Catalyse et de Chimie du Solide (UCCS), Université Lille 1-ENSCL-EC Lille, Bât. C3, Cite Scientifique, 59655 Villeneuve d'Ascq (France), Fax: (+33) 3-20-43-65-61
    • Unité de Catalyse et de Chimie du Solide (UCCS), Université Lille 1-ENSCL-EC Lille, Bât. C3, Cite Scientifique, 59655 Villeneuve d'Ascq (France), Fax: (+33) 3-20-43-65-61
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Abstract

original image

Detached from it all: Cobalt sintering leading to the formation of large, individually detached microscopic metal agglomerates is detected in alumina-supported cobalt catalysts after Fischer–Tropsch synthesis in a slurry reactor. The macroscopic sintering depends on the H2/CO ratio, the partial pressure of water, and the conversion of carbon monoxide, all of which lead to dramatic catalyst deactivation.

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