Solid state mechanism leading to enhanced attrition resistance of alumina based catalyst supports for Fischer–Tropsch synthesis

A solid state mechanism for improving the attrition resistance of alumina based catalyst supports for Fischer–Tropsch synthesis is reported. The grain size, intergranular neck formation and phase composition of the support are modified by impregnating γ-alumina with metal oxide precursors, which ena...

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Bibliographic Details
Published in:Journal of the European Ceramic Society 2013-01, Vol.33 (1), p.1-6
Main Authors: Rotan, Magnus, Rytter, Erling, Einarsrud, Mari-Ann, Grande, Tor
Format: Article
Language:English
Subjects:
Alumina
Attrition
Catalyst support, Microstructure engineering
Catalysts
Coarsening
Metal oxides
Phase composition
Porous materials
Solid solutions
Solid state
Synthesis
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Summary:A solid state mechanism for improving the attrition resistance of alumina based catalyst supports for Fischer–Tropsch synthesis is reported. The grain size, intergranular neck formation and phase composition of the support are modified by impregnating γ-alumina with metal oxide precursors, which enable to control the phase transformation and coarsening of the γ-alumina based supports during calcination. We show by high temperature X-ray diffraction that the formation of a metastable spinel solid solution is critical for the evolution of the microstructure.
ISSN:0955-2219
1873-619X
DOI:10.1016/j.jeurceramsoc.2012.08.010