Dehydrogenation catalyst of alkyl aromatic compounds having...

B - Operations – Transporting – 01 – J

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B01J 23/88 (2006.01) B01J 37/04 (2006.01) B01J 37/08 (2006.01) C07C 5/333 (2006.01) C07C 15/46 (2006.01) C07B 61/00 (2006.01)

Patent

CA 2676383

Disclosed is a dehydrogenation catalyst which comprises a pellet of a high-cerium-content iron oxide/potassium oxide catalyst for the dehydrogenation of an alkyl aromatic compound which is intended to be used in an industrial scale, wherein the pellet is improved in the physical strength. Also disclosed is a method for producing the dehydrogenation catalyst. Further disclosed is a dehydrogenation method using the dehydrogenation catalyst. In the production of a pellet comprising an iron oxide/potassium oxide dehydrogenation catalyst having a high cerium content, cerium carbonate hydroxide alone or a mixture of cerium carbonate hydroxide with another cerium compound is used as a cerium source, whereby a pellet having high physical strength can be produced.

L'invention porte sur un catalyseur de déshydrogénation qui comporte un grain de catalyseur d'oxyde de fer/oxyde de potassium à teneur élevée en cérium pour la déshydrogénation d'un composé alkyl aromatique qui est destiné à être utilisé à une échelle industrielle, le grain présentant une résistance physique améliorée. L'invention porte également sur un procédé de fabrication du catalyseur de déshydrogénation. L'invention concerne également un procédé de déshydrogénation à l'aide du catalyseur de déshydrogénation. Dans la fabrication d'un grain comportant un catalyseur de déshydrogénation d'oxyde de fer/oxyde de potassium ayant une teneur élevée en cérium, un carbonate hydroxyde de cérium seul ou un mélange de carbonate hydroxyde de cérium avec un autre composé du cérium est utilisé comme source du cérium, ce par quoi un grain ayant une résistance physique élevée peut être obtenu.

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