Supercritical fluid extraction system and extraction method

A supercritical fluid and extraction technology, applied in the field of extraction, can solve the problems of inability to extract raw materials, insufficient extraction of raw materials, waste, etc.

CN110975321AInactive Publication Date: 2020-04-10施景中 +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2020-04-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a supercritical fluid extraction system and extraction method, wherein the supercritical fluid extraction system comprises a fluid supply device, a pressurizing device, a heating device, a primary extraction device, a collecting device and an ultrasonic extraction device; the fluid supply device is at least provided with a fluid storage tank and a circulating cooling tank communicating with the fluid storage tank through a pipeline; the pressurizing device is at least provided with a pressurizing pump; the heating device is at least provided with a first heat exchanger;the primary extraction device is at least provided with an extraction tank, and the extraction tank is connected with the first heat exchanger through a pipeline; the collecting device is provided with at least one collecting tank; the ultrasonic extraction device comprises a first reaction tank, an end cover, an electric heater and an ultrasonic rod. The method for extracting an extract by adopting the supercritical fluid extraction system comprises a fluid supply step, a pressurizing and heating step, an extraction step, a collection step and a recovery step; through extraction and ultrasonic extraction in sequence, the raw materials are extracted more sufficiently, the extraction efficiency is improved, and meanwhile, cyclic utilization of carbon dioxide is achieved.
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Description

technical field

[0001] The invention relates to the technical field of extraction, in particular to a supercritical fluid extraction system and an extraction method thereof. Background technique

[0002] Supercritical is a supercritical fluid, which is a state of matter that is neither gaseous nor liquid between gas and liquid. This substance can only exist when its temperature and pressure exceed the critical point. A supercritical fluid has a higher density, similar to a liquid, and its viscosity is closer to that of a gas. So supercritical fluid is a very ideal extraction agent.

[0003] The solvent strength of the supercritical fluid depends on the temperature and pressure of the extraction. Using this characteristic, only by changing the pressure and temperature of the extractant fluid, the different components in the sample can be extracted successively according to the solubility in the fluid. , the weakly polar substances are extracted first under low pressure, and...

Examples

Embodiment 1

[0052] Extraction of polysaccharides and triterpenes from Cinnamomum camphorii using supercritical carbon dioxide, such as figure 1 , Figure 3-5 As shown, the fluid supply device 1 at least has a fluid storage tank 11 and a circulation cooling tank 12 communicated with the fluid storage tank 11 through pipelines; the fluid storage tank 11 stores carbon dioxide, and the carbon dioxide is passed into the circulation cooling tank through pipelines 12 for cooling, the cooled carbon dioxide is passed into the pressurizing device 2 through the pipeline, and the pressurizing device 2 is connected with the circulating cooling tank 12 through the pipeline, and the control fluid output control valve is arranged on the pipeline, and the pressurizing device 2 At least one booster pump 21 is provided. The booster pump 21 pressurizes the carbon dioxide to the pressure required for extraction, and pressurizes the modified booster pump 22 again, with a pressure value of 2000psi, which acts a...

Embodiment 2

[0057] Using supercritical carbon dioxide to extract triterpenes and polysaccharides from Bailing mushroom, such as figure 2 , 6 and Figure 3-4 As shown, the fluid supply device 1 at least has a fluid storage tank 11 and a circulation cooling tank 12 communicated with the fluid storage tank 11 through pipelines; the fluid storage tank 11 stores carbon dioxide, and the carbon dioxide is passed into the circulation cooling tank through pipelines 12 for cooling, the cooled carbon dioxide is passed into the pressurizing device 2 through the pipeline, and the pressurizing device 2 is connected with the circulating cooling tank 12 through the pipeline, and the control fluid output control valve is arranged on the pipeline, and the pressurizing device 2 At least one booster pump 21 is provided. The booster pump 21 pressurizes the carbon dioxide to the pressure required for extraction, and pressurizes the modified booster pump 22 again, with a pressure value of 2000psi, which acts ...