A high activity and high stability iron oxide based...

B - Operations – Transporting – 01 – J

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B01J 23/89 (2006.01) C07C 5/333 (2006.01)

Patent

CA 2587496

A high activity and high stability dehydrogenation catalyst, its manufacture and its use. The catalyst comprises an iron oxide component having a low titanium content, wherein the iron oxide component is made by the heat- treating of a yellow iron oxide precipitate made by precipitating from a solution of an iron salt the yellow iron oxide precipitate and, optionally, an additional dehydrogenation catalytic component, wherein the iron oxide based dehydrogenation catalyst composition has a low concentration of titanium. The low titanium containing iron oxide based dehydrogenation catalyst is used in the dehydrogenation of dehydrogenatable hydrocarbons.

L'invention concerne un catalyseur de déshydrogénation à rendement élevé et à grande stabilité, ainsi que son procédé de fabrication et d'utilisation. Ce catalyseur comprend, d'une part, de l'oxyde de fer à faible concentration en titane, l'oxyde de fer étant obtenu par traitement thermique d'un précipité d'oxyde de fer jaune obtenu par précipitation à partir d'une solution d'un sel de fer, et d'autre part, éventuellement un catalyseur de déshydrogénation supplémentaire. Le catalyseur de déshydrogénation à base d'oxyde de fer de l'invention a une faible concentration en titane. Ce catalyseur de déshydrogénation à base d'oxyde de fer est utilisé pour la déshydrogénation d'hydrocarbures pouvant être soumis à une déshydrogénation.

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