Process for the reactivation of sulfur deactivated cobalt titania catalyst

A process for the desulfurization, and reactivation of a sulfur deactivated catalyst constituted of cobalt composited with a titania support. The sulfur deactivated cobalt titania catalyst is first contacted with a gaseous stream of molecular oxygen at temperature sufficiently high to oxidize the su...

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Hauptverfasser: RUSSELL JOHN KOVEAL JR, ANATOLY B. EROFEEV, ALLA JURIEVNA KRYLOVA, MICHEL A. DAAGE, ALBERT LVOVICH LAPIDUS
Format: Patent
Sprache:eng
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Zusammenfassung:A process for the desulfurization, and reactivation of a sulfur deactivated catalyst constituted of cobalt composited with a titania support. The sulfur deactivated cobalt titania catalyst is first contacted with a gaseous stream of molecular oxygen at temperature sufficiently high to oxidize the sulfur component of the catalyst. The sulfur oxidized catalyst is next contacted with a liquid, preferably water, to remove the oxide, or oxides of the sulfur. The catalyst is then contacted with a reducing agent, suitably hydrogen, to restore the activity of the catalyst. During the treatment there is no substantial loss, if any, of cobalt from the catalyst.