Comparison of (non)-sulfided NiNaY zeolite catalysts prepared by ion-exchange and impregnation by xenon adsorption and129Xe NMR |
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| Authors: | T I Korányi L J M van de Ven W J J Welters J W de Haan V H J de Beer R A van Santen |
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| Affiliation: | (1) Schuit Institute of Catalysis, Eindhoven University of Technology, PO Box 513, 5600 MB Eindhoven, The Netherlands |
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| Abstract: | Ni2+ exchanged and NiCl2 impregnated non-sulfided and sulfided NaY zeolites were characterized by xenon adsorption isotherms,129 Xe NMR and thiophene hydrodesulfurization. The nickel species are located mainly inside the micropores of the zeolites in all samples. Ion-exchange results in a more homogeneous distribution of these species than impregnation. This explains their lower hydrodesulfurization activity compared to the ion-exchanged samples.On leave of absence from the Institute of Isotopes, Budapest, Hungary. |
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| Keywords: | Xenon adsorption 129Xe NMR zeolites NiNaY sulfidation of hydrodesulfurization (HDS) thiophene |
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