Reaction device for preparing ethylbenzene hydroperoxide

A technology of ethylbenzene hydrogen peroxide and reaction device, which is applied in the direction of peroxy compound preparation, feeding device, chemical/physical/physicochemical fixed reactor, etc., can solve the problems of low yield of ethylbenzene hydrogen peroxide, etc. To achieve the effects of prolonging the mixing time, increasing the amount of oxygen, and increasing the yield

Active Publication Date: 2021-11-23
浙江智英石化技术有限公司
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  • Claims
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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

Method used

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  • Reaction device for preparing ethylbenzene hydroperoxide
  • Reaction device for preparing ethylbenzene hydroperoxide
  • Reaction device for preparing ethylbenzene hydroperoxide

Examples

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Embodiment 2

[0043] The difference between this embodiment and Embodiment 1 is: refer to image 3 and Figure 4 , the intake assembly 400 includes a gas filling pipe 430 and a plurality of gas filling plates 440 . The gas-filling pipe 430 includes a connecting sub-pipe 431 and a plurality of gas-filling sub-pipes 432. One end of the connecting sub-pipe 431 passes through the inner wall of the reactor body 200 to connect with the pumping device, and the connecting sub-pipe 431 is connected to the pumping device through a rotary joint. The joint is located in the reactor body 200 , and the other end of the connecting sub-pipe 431 communicates with a plurality of gas-filling sub-pipes 432 . The number of gas-filling sub-pipes 432 is consistent with the number of gas-filling plates 440 , and the gas-filling sub-pipes 432 correspond to the gas-filling plates 440 one-to-one. In this embodiment, there are three gas-filling sub-pipes 432, and the three gas-filling sub-pipes 432 are evenly arrang...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J19/18B01J19/00B01J4/00B01F13/02C07C407/00C07C409/08B01F33/40
CPCC07C407/00B01J19/1818B01J19/006B01J19/0066B01J4/001C07C409/08
Inventor 蒋平薛宽荣陈松炜卢荣贵宋广杰
Owner 浙江智英石化技术有限公司
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