Process for producing styrene

专利名称：Process for producing styrene发明人：RYOZO HAMANA,SHOHEI SUZUKI,SYUJI

OBAYASHI,MAKOTO TAKIGUCHI,HISASHIFUJITA

申请号：AU8130898申请日：19980714公开号：AU8130898A公开日：19990210

摘要：A process for producing styrene by oxidative dehydrogentation of

ethylbenzene, wherein the dehydrogenation of ethylbenzene is conducted through atleast the following steps (1) to (3), whereby styrene can be produced in a high yield bycontrolling the lowering of the selectivity of an oxidation catalyst in hydrogen oxidationby removing an alkaline substance contained in the reaction mixture to be fed to step (2)beforehand:step (1): a step of dehydrogenating ethylbenzene in the presence of adehydrogenation catalyst to obtain a reaction mixture containing styrene and

hydrogen;step (2): a step of bringing the reaction mixture into contact with an oxidationcatalyst to selectively oxidize the hydrogen contained in the mixture, thereby formingwater;step (3): a step of bringing the oxidized mixture into contact with a

dehydrogenation catalyst to dehydrogenate the unreacted ethylbenzene contained inthe mixture, thereby obtaining styrene.

申请人：MITSUBISHI CHEMICAL CORPORATION

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