Comparison of impregnation, liquid- and solid-state ion exchange procedures for the incorporation of nickel in HMFI, HMOR and HBEA: Activity and selectivity in n-nonane hydroconversion

Nickel containing HMFI, HMOR and HBEA zeolites was prepared by impregnation and liquid- and solid-state ion exchange. The kinetics of the solid-state ion exchange of the protons (Brønsted acid sites) with NiCl 2 was followed by IR and TPE measurements. The results were compared to catalysts prepared...

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Bibliographic Details
Published in:Microporous and mesoporous materials 2000-09, Vol.39 (1), p.307-317
Main Authors: Kinger, G, Lugstein, A, Swagera, R, Ebel, M, Jentys, A, Vinek, H
Format: Article
Language:English
Subjects:
Catalysis
Catalysts: preparations and properties
Characterization
Chemistry
Exact sciences and technology
General and physical chemistry
Hydroconversion
Ion-exchange
n-Nonane
Ni/zeolites
Surface physical chemistry
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Zeolites: preparations and properties
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Summary:Nickel containing HMFI, HMOR and HBEA zeolites was prepared by impregnation and liquid- and solid-state ion exchange. The kinetics of the solid-state ion exchange of the protons (Brønsted acid sites) with NiCl 2 was followed by IR and TPE measurements. The results were compared to catalysts prepared by liquid-phase ion exchange and by incipient wetness impregnation. The level of ion exchange reached 100% when the solid-state procedure was used, whereas the exchange level was limited in the case of liquid exchange. The exchange degree increased in the sequence BEA
ISSN:1387-1811
1873-3093
DOI:10.1016/S1387-1811(00)00211-0