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Supercritical extraction separation kettle, extraction system and extraction method

A supercritical and separation kettle technology, applied in separation methods, chemical instruments and methods, filtration separation, etc., can solve the problems of reduced flow stability, large cycle space occupation, cumbersome disassembly process, etc., to reduce construction costs and save occupation The effect of improving ground space and extraction yield

Pending Publication Date: 2020-08-21
北京斯坦励能源科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently used supercritical extraction circulation device mainly has the following problems: ①The extraction, separation, and purification processes require many components, and the actual circulation takes up a lot of space; ②The traditional hollow belt extraction kettle has low space utilization and direct flow The structure is easy to form wall flow and reduce the flow stability; ③The parts are complicated and the disassembly process is cumbersome
It is the existence of these problems that the extraction efficiency in actual production is greatly limited

Method used

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  • Supercritical extraction separation kettle, extraction system and extraction method
  • Supercritical extraction separation kettle, extraction system and extraction method
  • Supercritical extraction separation kettle, extraction system and extraction method

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Embodiment Construction

[0033] The technical solutions of the present invention will be further described in detail through specific embodiments below in conjunction with the accompanying drawings.

[0034] like figure 1 As shown, the supercritical carbon dioxide circulation extraction system includes: an extraction separation tank 1 , a cooler 4 , a supply tank 6 , a heater 7 , an infusion pump 8 , and a precooler 10 . The carbon dioxide liquid stored in the supply tank 6 is output to the heater 7, and heated to the temperature and pressure (50°C, 10-11MPa) required for extraction through the heater 7 to obtain a supercritical carbon dioxide fluid; The critical carbon dioxide fluid enters the precooler 10 for precooling, and the state of the supercritical carbon dioxide fluid at the outlet of the precooler 10 is controlled to be 43.5-45.2°C and 10.0-10.5MPa; the supercritical carbon dioxide fluid is provided with a third throttle valve The pipeline of 11 enters from the side of the extraction and s...

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Abstract

The invention discloses a supercritical extraction separation kettle, an extraction system and an extraction method. The supercritical extraction separation kettle comprises a kettle body and a top cover, and further comprises an annular extraction layer, an annular porous medium layer and a cyclone separator which are sequentially arranged in the kettle body in a sleeved mode from outside to inside. On one hand, such an annular layered structure enables an extraction agent to complete extraction in an internal rotation flowing mode, so a contact area between the extraction agent and an objectto be extracted in the flowing process of the extraction agent is increased, and extraction yield is greatly increased; on the other hand, the space utilization rate in the extraction kettle is increased, and the common wall flow problem in the supercritical extraction process is avoided; meanwhile, a flow field in the extraction separation kettle is more uniform and stable by designing the orientation of air inlet holes and arranging an arc-shaped flow guiding plate. The supercritical extraction separation kettle of the invention has three functions including extraction, pressure reduction,and separation and purification, and can realize high-quality and high-efficiency bioactive component extraction and cyclic reutilization of the extraction agent.

Description

technical field [0001] The invention relates to the technical field of supercritical extraction, in particular to a supercritical extraction separation kettle, an extraction system comprising the extraction separation kettle, and an extraction method for extracting biologically effective components at low temperature using the extraction system. Background technique [0002] When the pressure and temperature of the fluid exceed the value corresponding to its critical point, the fluid enters a supercritical state. At this time, the force between the fluid molecules is between the liquid and the gas molecules, and the fluid will simultaneously exhibit a high temperature similar to that of a liquid. Density, good solubility and fluidity, as well as low viscosity and good diffusivity similar to gas, can be used as a very ideal extraction agent. At present, more than 90% of the supercritical extraction process is carried out using carbon dioxide, the main reason is that the criti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/02B01D36/04B01D35/01
CPCB01D11/0203B01D36/04B01D36/001B01D2011/005
Inventor 张雅萌张雅晴
Owner 北京斯坦励能源科技有限公司
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