Naphthene ring opening over a ring opening catalyst combination

Details Naphthene ring opening over a ring opening catalyst combination Naphthene ring opening over a ring opening catalyst combination

C - Chemistry, Metallurgy

07

C

C07C 2/00 (2006.01) B01J 23/40 (2006.01) B01J 35/00 (2006.01) C07C 5/00 (2006.01) C07C 5/13 (2006.01) C10G 35/02 (2006.01) C10G 35/04 (2006.01) C10G 35/06 (2006.01) C10G 35/085 (2006.01) C10G 35/09 (2006.01) C10G 45/62 (2006.01) B01J 23/58 (2006.01) B01J 23/60 (2006.01) B01J 23/62 (2006.01) B01J 23/89 (2006.01)

Patent

CA 2415706

Disclosed is a process for opening naphthenic rings of naphthenic ring- containing compounds, along with catalysts which can be used in that process. The ring opening is accomplished using a ring opening catalyst system which combines an Ir ring opening catalyst with a Pt and Pd catalyst. The combination of the Pt and Pd-containing catalyst with an Ir-containing catalyst incorporates desirable isomerization activity and also results in substantial ring opening activity that enables Ir to be loaded at a level that is substantially below that of Ir-only ring opening process.

L'invention concerne un procédé pour ouvrir des cycles naphténiques de composés contenant des cycles naphténiques, ainsi que des catalyseurs pouvant être utilisés dans ce procédé. L'ouverture de cycle est accomplie au moyen d'un système de catalyseur d'ouverture de cycle qui combine un catalyseur Ir d'ouverture de cycle avec un catalyseur Pt et Pd. La combinaison de catalyseur contenant du Pt et Pd avec un catalyseur contenant de l'Ir permet d'incorporer une activité d'isomérisation souhaitable et d'obtenir une activité substantielle d'ouverture de cycle qui permet à l'Ir d'être chargé à un niveau sensiblement inférieur à celui qui s'obtient dans un procédé d'ouverture de cycle ne contenant que de l'Ir.

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