Verfahren zur Herstellung von Ethylbenzol

摘要

The present invention relates to a process for producing ethylbenzene, which process comprises: feeding ethylene, catalyst, and benzene into reaction tubes in an alkylation reactor vessel (303) in which they react exothermically producing a first stream (305) with benzene, catalyst, ethylbenzene and polyethylbenzenes as reaction products; flowing the first stream into a transalkylation reactor (313) producing a second stream (314) with a higher ethylbenzene content and a lower polyethylbenzene content than the first stream (305), the second stream (314) containing catalyst, ethylbenzene, benzene, and polyethylbenzene; flowing the second stream (314) to separation means (326) for separating out its component, including ethylbenzene; flowing a heat transfer medium (331) in heat exchange relationship with the reaction tubes in the reactor vessel (303) to recover heat produced by the reaction of the ethylene and benzene, and flowing the thus heated transfer medium to the separation means (326) to provide heat for operating the separation means.