Comparison of (non)-sulfided NiNaY zeolite catalysts prepared by ion-exchange and impregnation by xenon adsorption and xenon-129 NMR

T.I. Koranyi, L.J.M. Ven, van de, W.J.J. Welters, J.W. Haan, de, V.H.J. Beer, de, R.A. Santen, van

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Abstract

Ni2+ exchanged and NiCl2 impregnated non-sulfided and sulfided NaY zeolites were characterized by xenon adsorption isotherms, Xe-129 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
Original languageEnglish
Pages (from-to)105-116
Number of pages12
JournalCatalysis Letters
Volume17
Issue number1-2
DOIs
Publication statusPublished - 1993

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