Reversible and Irreversible Deactivation of Supported Bimetallic Catalysts for the Dehydrogenation of Lower Paraffins
作者： N. A. Pakhomov
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摘要: The reasons and nature of the deactivation spinel-supported bimetallic Pt–Sn, Pt–In, Pt–Cu catalysts in steam dehydrogenation C4–C5paraffins are analyzed. can be reversible irreversible. Reversible is associated with effects composition reaction medium gaseous for preliminary treatment on surface supported alloys coking catalysts. Irreversible result from irreproducibility phase dispersion dehydrogenation–regeneration cycles carbon erosion This consists removal active metal particles to bulk deposits. formation deposits surfaces spinel supports considered. Recommendations optimizing operating conditions given order reduce factors that irreversible deactivation.
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