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Online olefin and oxygen mixing device

A mixing equipment and olefin technology, applied in mixers, fluid mixers, transportation and packaging, etc., can solve the problems of unsatisfactory mixing effect of olefins and oxygen, and achieve reduced flow cross-section, increased pressure drop, and uniform speed. Effect

Inactive Publication Date: 2018-08-03
SINOPEC SHANGHAI ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is the unsatisfactory mixing effect of olefins and oxygen in the prior art, and a new online mixing equipment for olefins and oxygen is provided

Method used

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  • Online olefin and oxygen mixing device
  • Online olefin and oxygen mixing device
  • Online olefin and oxygen mixing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An in-line mixing device for olefins and oxygen, such as figure 1 , 2 As shown, it includes the olefin main pipeline, oxygen pipeline, and mixing chamber. The end of the olefin main pipeline is connected to the mixing chamber. Several annular distribution pipes are arranged in the mixing chamber. The plane of the annular distribution pipes is perpendicular to the flow direction of olefins. The opening direction of the nozzle is consistent with the flow direction of olefins. The oxygen pipeline is divided into several branch pipes outside the main pipeline and then enters the circulation gas main pipe to connect with the circular distribution pipe. All the annular distribution pipes are arranged on a plane so that The olefins are rapidly mixed with the oxygen sprayed from the nozzle of the circular distribution pipe in the mixing zone.

[0025] The structural parameters of the online mixing equipment mixer are as follows:

[0026] The inner diameter of the olefin main ...

Embodiment 2

[0042] According to the conditions and steps described in embodiment 1, the structural parameters of the online mixing equipment mixer are as follows:

[0043] The structural parameters of the online mixing equipment mixer are as follows:

[0044] The inner diameter of the olefin main pipeline: DN1100, the diameter of the ring distribution pipe: DN65, the number of ring distribution pipes is 5, the average flow velocity in the distribution pipe is 6m / s, the ring distribution pipe 1 is connected with a branch pipe, and the ring distribution pipe is 2 / 3 It is connected with 2 branch pipes, and the annular distribution pipe 4 / 5 is connected with 3 branch pipes. The average flow velocity of each branch pipe is 5m / s, and the distance between two adjacent distribution rings is 95mm; the pipe diameter of the branch pipe : DN65, nozzle diameter: 3mm, nozzle speed is 70m / s, nozzle spacing is 4.3 times the nozzle diameter, and the number of nozzles is 103; the diameter of the circular d...

Embodiment 3

[0060] According to the conditions and steps described in Example 1, the structural parameters of the mixer of the online mixing device are as follows:

[0061] On-line mixing equipment mixer structure parameters are as follows:

[0062] The inner diameter of the olefin main pipe: DN1100, the diameter of the annular distribution pipe: DN25, the number of annular distribution pipes is 10, the average flow velocity in the distribution pipe is 16m / s, and 1 / 2 / 3 of the annular distribution pipe is connected to a branch pipe. Piping 4 / 5 is connected with 2 branch pipes, annular distribution pipe 6 / 7 is connected with 3 branch pipes, annular distribution pipe 8 / 9 is connected with 4 branch pipes, annular distribution pipe 10 is connected with 5 branch pipes, each The average flow velocity of the branch pipe is 12m / s, and the distance between two adjacent distribution rings is 65mm; the pipe diameter of the branch pipe: DN25, the nozzle diameter: 4mm, the nozzle speed is 70m / s, and th...

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Abstract

The invention relates to an online olefin and oxygen mixing device. The device is mainly used for solving the problem of unsatisfactory mixing effect of olefin and oxygen in the prior art. The onlineolefin and oxygen mixing device comprises a main olefin pipeline, an oxygen pipeline and a mixing chamber, the tail end of the main olefin pipeline is communicated with the mixing chamber, a pluralityof annular distribution tubes are arranged in the mixing chamber, the plane of the annular distribution tubes is perpendicular to the flow direction of olefin, every annular distribution tube is uniformly provided with a plurality of oxygen nozzles, the opened directions of the nozzles are consistent with the flow direction of the olefin, and the oxygen pipeline is divided into a plurality of branch tubes outside the main pipeline, then enters a main circulating gas tube, and is connected with a circular distribution tube to make the olefin entering the main pipeline and oxygen ejected by thenozzle of the circular distribution tube rapidly mixed in a mixing area. The device well solves the problem, and can be used for online mixing the olefin and oxygen.

Description

technical field [0001] The invention relates to an online mixing device of olefin and oxygen. Background technique [0002] There are two industrial production methods of ethylene oxide / ethylene glycol (EO / EG), namely chlorohydrin method and ethylene direct oxidation method. Ethylene direct oxidation is further divided into air oxidation and oxygen oxidation. Compared with the air oxidation method, the oxygen oxidation method has a shorter process flow, less equipment, and less investment in plant construction; the selectivity of the catalyst in the oxidation reaction is high, and the reaction temperature is lower than that of the air method, which can prolong the life of the catalyst and maintain the stable operation of production more favorable. Usually the production cost of oxygen oxidation method is about 10% lower than that of air oxidation method. Due to the obvious advantages of the oxygen oxidation method over the air oxidation method, the oxygen oxidation method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F5/02B01F15/02
CPCB01F2025/916B01F25/28B01F25/27B01F35/2111B01F35/2113B01F35/2134B01F35/2136B01F35/2115B01F35/7179
Inventor 裴凯凯江继峰陈迎刘肖肖张艺徐曼
Owner SINOPEC SHANGHAI ENG
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