Reaction device for preparing ethylbenzene hydroperoxide

Abstract

The invention relates to a reaction device for preparing ethylbenzene hydroperoxide. The reaction device comprises a plurality of reactors which are sequentially connected in series. Each reactor comprises a reactor body, and an exhaust pipe and an air inlet assembly which are communicated with the reactor body. Openings are formed in the two ends of each reactor body, and the openings of the plurality of reactors are sequentially communicated. A plurality of groups of radial baffles are arranged in each reactor body. In each group of radial baffles, there is at least one radial baffle with one end fixed to the side, close to the ground, of the reactor body and the other side overhung in the direction away from the ground, there is at least one radial baffle with one side fixed to the side, away from the ground, of the reactor body and the other side overhung in the direction close to the ground, and the projection parts of the two radial baffles in the vertical direction coincide. The number of the radial baffles in the reactor bodies is sequentially reduced in the material flowing direction. The radial baffles are arranged to achieve the purpose of improving the yield of ethylbenzene hydroperoxide.

Description

technical field [0001] The application relates to the field of styrene production, in particular to a reaction device for preparing ethylbenzene hydroperoxide. Background technique [0002] In the styrene / propylene oxide co-production process, ethylbenzene is used as raw material to react ethylbenzene with air to prepare the intermediate product ethylbenzene hydroperoxide, which is concentrated and epoxidized with propylene to generate propylene oxide and a-phenylethanol , the refined a-phenylethanol is dehydrated to generate styrene. [0003] related technologies, such as figure 1 As shown, a reactor for ethylbenzene hydroperoxide, the reactor 100 includes a reactor body 200 , an inlet pipe 270 and an exhaust pipe 280 communicating with the reactor body 200 . Both ends of the reactor body 200 have openings. Ethylbenzene enters the reactor 100 from the ethylbenzene inlet pipe, and air enters the reactor 100 from the inlet pipe 410, and contacts with ethylbenzene, so that ...

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Problems solved by technology

[0004] For the above-mentioned related technologies, the inventor thinks that there is the following defect: when adopting the above-mentioned reactor, the yield of ethylbenzene hydroperoxide is relatively low

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