Instability of zeolite Y supported cobalt sulfide hydrotreating catalysts in the absence of H2S

M.J. Vissenberg, P.W. Bont, de, E.M. Oers, van, R.A. de Haan, E. Boellaard, A.M. Kraan, van der, V.H.J. Beer, de, R.A. Santen, van

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Abstract

Ion exchanged CoNaY was sulfided at 473 and 673 K and subsequently heated in He at 673 and 773 K. The resulting samples were characterized by means of overall sulfur analysis, temperature programmed Ar treatment and Fourier transform infrared spectroscopy. It was shown that during He flushing at sufficiently high temperature a protolysis reaction occurs resulting in the decomposition of Co sulfide into Co2+ ions and H2S
Original languageEnglish
Pages (from-to)25-29
JournalCatalysis Letters
Volume40
Issue number1-2
DOIs
Publication statusPublished - 1996

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