Mobile phase degassing processing device in simulated moving bed separation technology

Abstract

The invention discloses a mobile phase degassing processing device in a simulated moving bed separation technology, belonging to the field of chemical engineering equipment. The mobile phase degassing processing device comprises a flash evaporation tank, wherein a feed pipe is connected with a spray nozzle positioned in the center position of the upper part of the flash evaporation tank through an elbow, and the mobile phase degassing processing device is characterized in that the spray nozzle is of a cylindrical multi-layer film spray nozzle, layer film gaps in the horizontal direction are distributed in the circumferential direction of the cylindrical layer film spray nozzle along the cylindrical surface, and the adjacent layer film gaps in the up-and-down direction are in dislocation. As a feed liquid is sprayed like a thin film, the flash evaporation area is increased, and the flash evaporation effect is increased; and a secondary flash evaporation effect can be formed after the feed liquid is sprayed on the inner wall of a container, and the flash evaporation effect is increased. The device is designed into dislocation flash evaporation and can prevent the thin film of the feed liquid from mixing, and simultaneously produce the good flash evaporation effect. The mobile phase degassing processing device disclosed by the invention can greatly reduce the content of dissolved oxygen, better protect resin from being oxidized and prolong the service life.

Description

technical field [0001] The invention relates to a simulated moving bed separation technology, in particular to a mobile phase degassing treatment device in the simulated moving bed separation technology. Background technique [0002] In the simulated moving bed chromatographic separation system, the mobile phase often forms a gas-containing liquid due to dissolved oxygen or mixed with air. After entering the system, it will gradually accumulate to form large bubbles. These bubbles will change the route of the liquid in the resin medium. , thus affecting the separation effect of the system. On the other hand, during the high-temperature operation of the system, the oxygen in the solution dissociates at high temperature to produce strong oxidation, which causes the aging of the resin, which is prone to resin breakage and reduces the service life of the resin. The traditional deoxidation device is either tangentially fed for deoxidation, such as Figure 4 , but the deoxidation...

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Problems solved by technology

[0002] In the simulated moving bed chromatographic separation system, the mobile phase often forms a gas-containing liquid due to dissolved oxygen or mixed with air. After entering the system, it will gradually accumulate to form large bubbles. These bubbles will change the route of the liquid in the resin medium. , thus affecting the separation effect of the system

On the other hand, when the system is running at high temperature, the oxygen in the solution dissociates at high temperature to produce strong oxidation, which causes the aging of the resin, which is prone to resin breakage and reduces the service life of the resin.

The traditional deoxidation device is either tangentially fed for deoxidation, such as Figure 4 , but the deoxidation effect is not good; or spray atomization flash deoxidation, such as Figure 5 , this way will increase power consumption

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