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Slurry bed reactor

A technology of reactor and slurry bed, which is applied in the field of slurry bed reactor, can solve the problems of unfavorable slurry flow, thermal mass transmission, and unsmooth heat exchange plate, so as to improve reaction efficiency and heat exchange efficiency, and improve Cooling and cooling effect, effect of enhancing flow effect

Pending Publication Date: 2017-06-20
SHENWU TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the impediment between the heat exchange plates, it is not conducive to the flow of the slurry in the slurry bed and the transfer of heat and mass.

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0061] Such as Figure 1-Figure 5 As shown, the slurry bed reactor 100 includes: a shell 10 and a heat exchanger 20 .

[0062] Among them, such as figure 1 and figure 2 As shown, the slurry bed reactor 100 has a shell 10 defining a reaction chamber 110 . The height of the reaction chamber 110 (ie figure 1 and figure 2 The height in the vertical direction shown in ) is 7000mm, and the inner diameter is 600mm. A slurry may be passed into the reaction chamber 110, and the slurry may include a solvent and a catalyst. The reaction raw material gas a may pass into the reaction chamber 110 from the bottom of the slurry bed reactor 100 and be dissolved in a solvent. At a suitable temperature, the reaction raw material gas a can react to generate the corresponding reaction product b under the action of the catalyst. For example, taking the hydrogenation of acetylene to produce ethylene as an example, the solvent in the slurry may have high selective solubility for acetylene an...

Embodiment 2

[0070] Such as Figure 6-Figure 10 As shown, the difference from Embodiment 1 is that in this embodiment, the heat exchanger 20 includes three annular sub-heat exchangers 20a. The three sub-heat exchangers 20a are distributed at intervals along the radial direction of the reaction chamber 110, the sub-heat exchanger 20a located on the radially outer side is overlaid on the sub-heat exchanger 20a located on the radially inner side, and the adjacent two annular sub-heat exchangers The radial spacing between the devices 20a is 50 mm. A plurality of rectangular flow holes 210 are evenly spaced along the circumferential direction of the annular sub-heat exchanger 20a, and the flow holes 210 are along the up and down direction (such as Figure 6 The length in the vertical direction shown in ) is 100mm. On any two adjacent sub-heat exchangers 20a, a plurality of flow holes 210 are arranged in a one-to-one correspondence along the radial direction of the reaction chamber 110 . Thus...

Embodiment 3

[0075] Such as Figure 11-Figure 15 As shown, the difference from Embodiment 1 is that in this embodiment, the heat exchanger 20 includes five corrugated plate-shaped sub-heat exchangers 20a. Five corrugated plate-shaped sub-heat exchangers 20a are along the up-down direction (such as Figure 11 The vertical direction shown in ) extends and is arranged at intervals in the reaction chamber 110 to divide the reaction chamber 110 into a plurality of sub-chambers 111 . The shortest distance between two adjacent corrugated plates is 50mm. Each corrugated plate is evenly spaced with a plurality of circular circulation holes 210. The diameter of the circular circulation holes 210 is 50mm, and the interval between two adjacent circulation holes 210 is 200mm. Any adjacent sub-heat exchanger A plurality of flow holes 210 on 20a are provided in one-to-one correspondence.

[0076] Thus, by providing the corrugated plate-shaped sub-heat exchanger 20a, the heat exchange area between the ...

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Abstract

The invention discloses a slurry bed reactor. The slurry bed reactor comprises: a shell and a heat exchanger, the shell has a reaction chamber, the heat exchanger is arranged in the reaction chamber, and the heat exchanger divides the reaction chamber into multiple The heat exchanger is provided with flow holes for connecting two adjacent sub-chambers. The heat exchanger is located in the reaction chamber, and there is a channel for the cooling medium to flow in the heat exchanger. The channel has a cooling medium inlet and a cooling The medium outlet, the cooling medium inlet and the cooling medium outlet are all in communication with the outside of the reaction chamber. According to the slurry bed reactor of the embodiment of the present invention, by setting a heat exchanger in the reaction chamber, the heat exchanger divides the reaction chamber into a plurality of sub-chambers, increasing the effective heat exchange area between the cooling medium and the slurry, Thereby improving the heat exchange efficiency. Moreover, flow holes are provided on the heat exchanger to enhance fluidity in the reaction chamber. Therefore, it is beneficial to improve the reaction efficiency and heat exchange efficiency, thereby improving the performance of the slurry bed reactor.

Description

technical field [0001] The invention relates to the technical field of reactors, in particular to a slurry bed reactor. Background technique [0002] The slurry bed reactor is an important gas-liquid-solid multiphase reaction device, which is more suitable for heterogeneous catalytic reaction systems such as acetylene catalytic hydrogenation to ethylene and Fischer-Tropsch synthesis. However, in the process of catalytic hydrogenation of acetylene to ethylene in a slurry bed reactor, a large amount of heat of reaction will be released. If the heat of reaction is not removed in time, it will easily lead to a runaway temperature in the reactor, which is not conducive to the reaction operation and seriously Sometimes it will deactivate the catalyst and even lead to safety production accidents. Therefore, effective measures must be taken to prevent and eliminate the occurrence of runaway temperatures when using a slurry bed reactor for hydrogenation of acetylene to ethylene. ...

Claims

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Application Information

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IPC IPC(8): B01J8/22
CPCB01J8/22B01J8/1836
Inventor 刘周恩余海鹏苏二强吴黎阳李少雨黄伟史雪君史东军吴道洪
Owner SHENWU TECH GRP CO LTD
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