Process of preparing ethylbenzene or substituted derivatives...

Details Process of preparing ethylbenzene or substituted derivatives... Process of preparing ethylbenzene or substituted derivatives...

C - Chemistry, Metallurgy

07

C

C07C 15/02 (2006.01) B01J 19/00 (2006.01) C07C 2/66 (2006.01) C07C 5/333 (2006.01) C07C 15/073 (2006.01)

Patent

CA 2218869

A process of preparing ethylbenzene from ethane and benzene as raw materials. The process involves (1) contacting ethane in a dehydrogenation zone with a dehydrogenation catalyst comprising a mordenite zeolite, optionally containing a metallic component selected from gallium, zinc, and the platinum group metals under reaction conditions which yield a dilute ethylene stream in ethane. Thereafter, the ethylene stream is contacted with benzene in an alkylation zone in the presence of an alkylation catalyst, such as an acidic zeolite or a porous magnesium silicate, under reaction conditions such that ethylbenzene is formed.

L'invention concerne un procédé de préparation d'éthylbenzène à partir d'éthane et de benzène servant de matières premières. Ce procédé consiste (1) à mettre en contact de l'éthane dans une zone de déshydrogénation avec un catalyseur comprenant une mordénite, contenant le cas échéant un composé métallique sélectionné parmi le gallium, le zinc, et les métaux du groupe du platine, dans des conditions de réaction permettant d'obtenir un flux d'éthylène dilué dans l'éthane. Le procédé consiste ensuite à mettre en contact le flux d'éthylène avec du benzène dans une zone d'alkylation en présence d'un catalyseur d'alkylation, tel qu'une zéolithe acide ou un silicate de magnésium poreux, dans des conditions de réaction permettant la formation d'éthylbenzène.

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