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High-shear baffled reactor

A baffled reactor, high shear technology, applied in the reaction of liquid and gas under the catalytic active body, the chemical method of reacting liquid and gas medium, chemical instruments and methods, etc. Uneven distribution in the axial and circumferential directions, short residence time, etc., to achieve the effect of rapid mass transfer, increase reaction rate, and simple structure

Inactive Publication Date: 2017-05-31
西安强华环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional RPB has problems such as uneven distribution of fluid in the axial and circumferential directions in the packing, short residence time, and easy clogging of materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0038] Example 2: Vacuum water deoxygenation in a high shear baffle reactor

[0039] Water enters from the liquid inlet port 3 on a high-shear baffle reactor, and enters the inner cavity of the reactor through the liquid uniform distribution port 5. Radial outward flow; the vacuum pump gas outlet is connected to the reactor gas outlet 4. Under the action of the vacuum pump, the oxygen desorbed from the water flows radially inward in the rotating body 2 under the action of the pressure gradient, passing through the center of the reactor and the gas The outlet 4 is sucked out, and the liquid is discharged from the liquid outlet 10. The test conditions are: vacuum degree 0.096 MPa, liquid volume 600 L / h, rotation speed 800 rpm, temperature 26°C, initial oxygen content of water 8.3 ppm, water content after deoxidation by this process Oxygen down to 20 ppb.

Embodiment 3

[0040] Example 3: Methyldiethanolamine in a high shear baffle reactor removes CO from natural gas 2

[0041] Natural gas enters the equipment from the gas inlet 1 pipe of a high-shear baffle reactor, and flows from the outer edge to the inner edge of the rotating body 2 under pressure, and the methyldiethanolamine absorption liquid enters the reactor from the liquid distributor on the upper part of the reactor Inside, and flow from the inner edge of the rotating body 2 to the outer edge. Absorption liquid and natural gas countercurrently contact and react in the rotating body 2 to absorb CO 2 . After the reaction, the natural gas is discharged from the gas outlet 4, and the absorption liquid is discharged from the liquid outlet 10. Test conditions: natural gas flow rate 20000 m 3 / h, MDEA absorption liquid flow rate 200 m 3 / h, speed 150 rpm, temperature 40 ℃, pressure 70 atm, imported CO 2 Concentration 3%, export CO 2 The concentration is 0.3%.

Embodiment 4

[0042] Example 4: Degradation of phenol by ozone oxidation in a high shear baffle reactor

[0043] Ozone gas enters the equipment from the gas inlet 1 of a high-shear baffle reactor, and flows along the outer edge of the rotating body 2 to the inner edge under the push of pressure, and the phenol-containing wastewater enters the interior of the reactor from the liquid distributor on the upper part of the reactor, and Flow from the inner edge of the rotating body 2 to the outer edge. Ozone gas and phenol waste water contact and react countercurrently inside the rotating body 2 to degrade phenol. After the reaction, the gas is discharged from the gas outlet 4, and the waste water is discharged from the liquid outlet 10. Test conditions: ozone gas flow rate 1 m 3 / h, ozone content 60 mg / m 3 , the phenol concentration is 100 mg / L, the liquid flow rate is 100 L / h, the rotation speed is 1000 rpm, and the phenol degradation rate is 85%.

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Abstract

The invention relates to the field of chemical industry, and particularly relates to a high-shear baffled reactor. The reactor can be used for the reaction, the separation or the mixing of multiphase systems such as liquid-liquid, gas-liquid, gas-liquid-solid, liquid-solid, gas-solid and the like, and comprises a rotating body, a shell and a liquid distributor, wherein the rotating body comprises a rotating shaft, an upper end cover, a lower end cover and multiple layers of baffle plates which are arranged between the upper end cover and the lower end cover; the rotating shaft stretches into the shell to be connected with the lower end cover; the lower end cover is connected with the upper end cover through a plurality of pins which are arranged on the lower end cover in an annular shape; the upper end cover is in a circular-ring shape; the upper end cover is connected with the shell through an annular sealing device. The high-shear baffled reactor is simple in structure; the rotation of the rotating body is utilized; the baffle plates are rotated along with the rotating body; the high-speed shear and disturbance on gas-phase fluid and liquid-phase fluid and the like and the uniform distribution of the fluid in the rotating body are realized; thus, the multiphase systems are enabled to quickly achieve the uniform mixing of a molecular scale and quick mass transfer; the reaction rate, the mass transfer rate and the product yield are improved.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a high-shear baffle reactor, which can be used for reaction, separation or mixing of liquid-liquid, gas-liquid, gas-liquid-solid, liquid-solid, gas-solid and other multiphase systems. Background technique [0002] In the process of reaction, separation or mixing, it is often necessary to mix two or more materials thoroughly so that the different materials can be fully contacted, thereby intensifying the process. For example, in the process of gas-liquid, gas-liquid-solid absorption or absorption reaction, traditional towers are often used. The contact area of ​​multi-phase materials in the tower and the degree of turbulence of the fluid are relatively low, and rapid mass transfer cannot be achieved, so that the absorption target can be achieved. Larger equipment and higher operating costs are required; in liquid-liquid, gas-liquid-solid, gas-liquid, liquid-solid and other mixing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J10/00
CPCB01J10/00B01J10/007
Inventor 樊谕王志富陈铎
Owner 西安强华环保科技有限公司
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