Liquid self-accelerating multi-stage supergravity device and application

A technology of supergravity and liquid, which is applied in chemical methods for liquid-liquid reactions, feeding devices, chemical/physical/physicochemical fixed reactors, etc., which can solve the problems of inability to achieve liquid acceleration, uneven liquid flow rate, and liquid Uneven distribution and other problems, to achieve the effect of increasing the effective mass transfer specific surface area, reducing the volume of the equipment, and facilitating operation

Active Publication Date: 2022-07-01
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this device cannot achieve liquid acceleration. In industrial applications, there is always the situation that the flow rate of the liquid at the upper and lower ends of the liquid distributor is uneven, which makes the liquid distribution in the upper and lower sections of the packing uneven.

Method used

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  • Liquid self-accelerating multi-stage supergravity device and application
  • Liquid self-accelerating multi-stage supergravity device and application
  • Liquid self-accelerating multi-stage supergravity device and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0097] see figure 2 As shown, a kind of liquid self-accelerating multistage hypergravity device of the present invention is applied to ethylene-ethane system rectification and separation of ethylene and ethane, and the steps are as follows:

[0098] S1: the raw material enters the supergravity device from the primary feed port 16, opens the supergravity device, opens the tower kettle reboiler to heat the material, opens the tower top condenser 18, and closes the reflux;

[0099] S12: when 60% liquid level appears in the tower top condensing tank 19, the reflux is opened, and the liquid enters the supergravity device from the tower top condensing tank 19 from the reflux liquid inlet 11 to maintain a full reflux state;

[0100] S13: After the composition of the material at the top of the tower and the material in the tower reactor is stable, open the material discharge port at the top of the tower and the material discharge port at the bottom of the tower, continuously feed raw...

Embodiment 2

[0105] see image 3 As shown, a liquid self-accelerating multistage supergravity device of the present invention is applied to the alkylation reaction of carbon tetraalkane and carbon tetraalkene to prepare isooctane, and the steps are as follows:

[0106] S21: Connect the liquid outlet to the circulating pump 20 through a pipeline, and then connect it to the return liquid inlet 11 through a pipeline;

[0107] S22: Turn on the supergravity device, and the reaction material enters the supergravity device from the reflux liquid inlet 11;

[0108] S23: After the reaction material is intensified by the multi-stage hypergravity device, it is circulated into the hypergravity device through the circulation pump 20, and the qualified liquid product is extracted from the liquid outlet 14.

[0109] In step S23, the reaction time is 10-30 min.

[0110] In the specific application, after adding the internal components of the liquid speed-up in the multi-stage supergravity rectification,...

Embodiment 3

[0112] see Figure 4 As shown, a kind of liquid self-accelerating multistage hypergravity device of the present invention is applied to α-methylstyrene hydrogenation reaction, and the steps are as follows:

[0113] S31: packing catalyst particles in the filler;

[0114]S32: Turn on the supergravity device, and the gas material is taken in from the gas inlet 13;

[0115] S33: the liquid material enters the supergravity device from the primary feed port 16 or the secondary feed port 17; the liquid outlet 14 is connected to the circulating pump 20 through a pipeline, and then connected to the reflux liquid inlet 11 through a pipeline, and the reaction is cyclic;

[0116] S34: After the reaction material is strengthened by the multi-stage supergravity device, it is extracted from the liquid outlet.

[0117] In the specific application, the contact between the gas, liquid and solid of the present invention is more sufficient, and the hydrogenation conversion rate of α-methyl styr...

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PUM

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Abstract

The invention discloses a liquid self-acceleration multi-stage supergravity device which comprises a shell, a motor, a rotating shaft, a multi-stage gas channel, a multi-stage guide plate, a multi-stage liquid storage tank, a multi-stage sealing ring, a multi-stage spiral acceleration impeller, a multi-stage liquid distributor, a multi-stage filler, a reflux inlet, a gas outlet, a liquid outlet and a heating coil. According to the multi-stage supergravity device, acceleration of liquid in the liquid distributor is achieved through the design of internal components, uniform distribution of the liquid in the axial direction of the filler is achieved, and the gas-liquid contact efficiency of the multi-stage supergravity device is improved; meanwhile, the equipment investment cost is saved, and the equipment is more simplified.

Description

technical field [0001] The invention relates to a supergravity channel rotating bed and its application. More specifically, it relates to a liquid self-accelerating multi-stage supergravity device and its application. Background technique [0002] The supergravity rotating packed bed uses the high-speed rotating rotor to form a centrifugal force field far greater than gravity. The liquid entering the rotor is dispersed and broken under the action of strong centrifugal force, forming fine droplets, liquid filaments and liquid films. The high dispersion and high turbulence of the liquid lead to the rapid renewal of the gas-liquid interface, and the liquid and the gas are in reverse contact in the rotor packing at a great relative speed, which greatly enhances the mass transfer process. The mass transfer coefficient of the supergravity rotating packed bed is 1-2 orders of magnitude higher than that of the traditional column, and the volume of the column can be reduced by more ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J4/00B01J19/18B01D3/30B01D3/00B01J8/10B01J14/00
CPCB01J4/002B01J4/007B01J19/18B01D3/008B01D3/30B01J14/00B01J8/085B01J8/10
Inventor 罗勇王保举初广文邹海魁孙宝昌张亮亮陈建峰
Owner BEIJING UNIV OF CHEM TECH
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