Method of making dimethylnaphthalenes

Details Method of making dimethylnaphthalenes Method of making dimethylnaphthalenes

C - Chemistry, Metallurgy

07

C

C07C 2/66 (2006.01) C07C 2/68 (2006.01) C07C 5/367 (2006.01) C07C 5/41 (2006.01) C07C 15/24 (2006.01) C10G 57/00 (2006.01)

Patent

CA 2323884

The method of the invention includes making dimethylnaphthalenes by first contacting, in an alkylation zone, at alkylation conditions, a toluene- containing stream with a pentene-containing stream in the presence of an acid alkylation catalyst. At least a portion of the toluene and pentenes react to form pentyltoluenes. At least a portion of the pentyltoluenes is then contacting in a reforming zone with reforming catalyst, at reforming conditions. At least a portion of the pentyltoluenes is converted to dimethylnaphthalenes.

Le procédé de l'invention concerne la production de dyméthylnaphtalène et consiste tout d'abord à mettre en contact, dans une zone d'alkylation, dans des conditions d'alkylation, un courant contenant du toluène avec un courant contenant du pentène en la présence d'un catalyseur d'alkylation acide. Au moins une partie des pentyltoluènes est ensuite mise en contact avec un catalyseur de reformage dans une zone de reformage, dans des conditions de reformage. Au moins une partie des pentyltoluènes est convertie en dyméthylnaphtalènes.

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