Gas-liquid-solid circulating fluidized bed adsorptive separation device and operation method

A circulating fluidized bed, adsorption separation technology, applied in solid adsorbent liquid separation, separation method, separation by moving adsorbent, etc. The effect of mass transfer and desorption mass transfer process

Inactive Publication Date: 2009-07-22
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the expanded bed is that it is necessary to switch between adsorption, cleaning, elution, and regeneration, which is cumbersome and time-consuming

Method used

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  • Gas-liquid-solid circulating fluidized bed adsorptive separation device and operation method
  • Gas-liquid-solid circulating fluidized bed adsorptive separation device and operation method
  • Gas-liquid-solid circulating fluidized bed adsorptive separation device and operation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0037] (1) Use water for debugging, add adsorption resin particles D-101 from the upper part of the descending bed 2, pass gas into the ascending bed 1 through the gas distributor 9, adjust the flow meter, and keep the gas volume at 0.0001-5.0m 3 / s, and make the system reach a steady cycle flow state.

[0038] (2) Use a pump to add matrine extract to the descending bed 2 through the extract distributor 10, the feed rate is 0.001-1m / s, and simultaneously use a pump to pass 60-80% ethanol into the ascending bed 1 for eluting The eluent passes through the main and auxiliary eluent distributor 13 to form two main and auxiliary liquid flows with a flow rate of 0.001-1m / s.

[0039] (3) The extract moves upward after entering the descending bed 2, and contacts and adsorbs in countercurrent with the adsorbing resin particles moving downward continuously. The extract that reaches the top of the down-bed has undergone relatively sufficient adsorption and separation, and will be discha...

Embodiment approach 2

[0044] (1) Use water for debugging, add adsorption resin particles CDA-40 from the upper part of the down bed 2, pass gas into the down bed 2 through the gas distributor 9, adjust the flow meter, and keep the gas volume at 0.0001-5.0m 3 / s, and make the system reach a steady cycle flow state.

[0045] (2) Utilize the pump to add the baicalin extract in the down-going bed 2 through the extract distributor 10, the feeding speed is 0.001-1m / s, and simultaneously use the pump to pass 60-80% ethanol eluent into the up-going bed 1 , the eluent passes through the main and auxiliary eluent distributor 13 to form two main and auxiliary liquid flows with a flow rate of 0.001-1 m / s.

[0046] (3) After the extraction liquid enters the descending bed 2, it moves upward together with the added gas, and contacts and adsorbs with the adsorption resin particles moving downward continuously, and the disturbance generated by the added gas in the descending bed reduces the thickness of the liquid...

Embodiment approach 3

[0051] (1) Use water for debugging, add adsorption resin particles ADS-F8 from the upper part of the descending bed 2, and pass gas into the ascending bed 1 and descending bed 2 respectively through two gas distributors 9, and adjust each flowmeter to maintain Gas volume is 0.0001-5.0m 3 / s, and make the system reach a steady cycle flow state.

[0052] (2) Utilize the pump to add the ginkgo extract in the descending bed 2 through the extract distributor 10, the feeding speed is 0.001-1m / s, and utilize the pump to pass into the 60-80% ethanol eluent in the ascending bed 1 simultaneously, The eluent passes through the main and auxiliary eluent distributors 13 to form two main and auxiliary streams with a flow velocity of 0.001-1 m / s.

[0053] (3) After the extraction liquid enters the descending bed 2, it moves upward together with the added gas, and contacts and adsorbs with the adsorption resin particles moving downward continuously, and the disturbance generated by the added...

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Abstract

The invention relates to an adsorptive separation device of a gas-liquid-solid circulating fluidized bed and an operation method thereof. The adsorptive separation device comprises an ascending bed, a descending bed, gas distributors, liquid distributors, a liquid-solid separator and circulating pipes; the lower part of the ascending bed is connected with the lower part of the descending bed through a lower circulating pipe; the upper part of the ascending bed is connected with the liquid-solid separator; the liquid-solid separator is connected with the descending bed through an upper circulating pipe; the lower parts of the ascending bed and the descending bed are provided with the gas distributor respectively; one liquid distributor is arranged under each gas distributor; the ascending bed and the descending bed are provided with a sampling port; and the upper and lower circulating pipes are provided with flushing fluid flowing pipelines. The method comprises: carrying out reverse flow adsorption operation on the descending bed of the gas-liquid-solid circulating fluidize bed, and simultaneously carrying out parallel flow desorption operation on the ascending bed. The motion of air bubbles is favorable for reducing the thickness of a liquid membrane on the surfaces of adsorptive particles, and reduces mass transfer resistance of the liquid membrane. The gas-liquid-solid circulating fluidize bed is an efficient adsorptive separation device system for separating Chinese medicinal herb such as gingko flavone.

Description

technical field [0001] The invention relates to the technical field of extraction and separation, in particular to a gas-liquid-solid circulating fluidized bed adsorption separation device and an operation method, that is, in the gas-liquid-solid three-phase circulating fluidized bed device system, the flavonoids, alkaloids and Continuous adsorption and desorption of Chinese herbal medicines such as saponins and saponins to achieve good separation effect. Background technique [0002] The rise of the upsurge of returning to nature in the world makes traditional Chinese medicine and natural medicine more and more popular, which provides a good opportunity for the development of high-tech traditional Chinese medicine. The extraction and separation methods of Chinese herbal medicines (such as flavonoids, alkaloids, saponins, etc.) mainly include: organic solvent extraction, water extraction, physical field-assisted extraction, enzymatic extraction, etc. The active ingredients ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D15/02B01D15/18B01J47/10B01J49/00B01J49/10B01J49/60
Inventor 刘明言刘建华谭琳
Owner TIANJIN UNIV
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