Perfume supercritical CO2 extraction and molecular distillation combined equipment

Abstract

The utility model belongs to the field of extraction and separation, in particular relates to supercritical CO2 extraction and molecular distillation combined equipment for spices, and aims to solve the problems that supercritical distillation and molecular distillation are respectively independent equipment, supercritical distillation is used for extraction, molecular distillation is used for separation, supercritical distillation and molecular distillation cannot be combined, and the efficiency of extraction and separation of spices is relatively low in the prior art. According to the scheme, the device comprises a base, and a gas cylinder, a first extraction condenser, an extraction kettle, an entrainer bottle, a nitrogen tank and a barrel are fixedly mounted at the top of the base; the first extraction condenser is connected with the extraction kettle through a pipeline, the nitrogen tank is connected with the barrel through a pipeline, the extraction kettle is connected with the barrel through a pipeline, and the gas cylinder, the extraction kettle, the entrainer bottle and the barrel are communicated in sequence. The production period is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of extraction and separation technology, and in particular to a device for supercritical CO2 extraction and molecular distillation of fragrances. Background Technology

[0002] Modern consumers are paying increasing attention to the quality and safety of fragrance products. They not only seek fragrances that bring a pure, rich and lasting aroma, but also have strict requirements on whether fragrances contain harmful substances and whether natural and environmentally friendly extraction processes are used. Solvent extraction and steam distillation are commonly used in the extraction process of fragrances.

[0003] Existing equipment for combining supercritical CO2 extraction and molecular distillation of spices still has some shortcomings in practical use:

[0004] Existing supercritical and molecular distillation are separate devices. Supercritical is used for extraction, and molecular distillation is used for separation. The two cannot be used together, resulting in relatively low efficiency for the extraction and separation of fragrances. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where supercritical CO2 extraction and molecular distillation are separate devices, with supercritical extraction used for extraction and molecular distillation used for separation, and the two cannot be used together, resulting in relatively low efficiency in the extraction and separation of fragrances. Therefore, this invention proposes a device that combines supercritical CO2 extraction and molecular distillation for fragrance extraction.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A supercritical CO2 extraction and molecular distillation combined device for fragrances includes a base. A gas cylinder, a first extraction condenser, an extraction vessel, an entrainer bottle, a nitrogen tank, and a cylinder are fixedly installed on the top of the base. The first extraction condenser and the extraction vessel, the nitrogen tank and the cylinder, the extraction vessel and the cylinder, and the gas cylinder, extraction vessel, entrainer bottle, and cylinder connected in sequence are all connected by pipes. A heat exchanger is fixedly installed between the extraction vessel and the entrainer bottle, and the inlet and outlet of the heat exchanger are respectively connected to the pipes between the entrainer bottle and the cylinder.

[0008] In one possible design, a second extraction condenser is fixedly installed on one side of the gas cylinder, and the inlet and outlet of the second extraction condenser are respectively connected to the pipelines of the gas cylinder and the extraction vessel.

[0009] In one possible design, air pumps are provided between the second extraction condenser and the extraction vessel, between the first extraction condenser and the extraction vessel, and between the nitrogen tank and the cylinder, and the inlet and outlet of the multiple air pumps are respectively connected to the pipeline.

[0010] In one possible design, a drive motor is fixedly installed at the top of the cylinder, a molecular distillation scraper is rotatably connected inside the cylinder, the top end of the drive motor's rotating shaft extends to the top of the cylinder, and the output shaft of the drive motor is fixedly connected to the top end of the molecular distillation scraper's rotating shaft. A molecular distillation heating surface is fixedly installed inside the cylinder, and a distillation condenser is fixedly installed at the bottom of the cylinder's inner cavity.

[0011] In one possible design, a light component collection bottle and a heavy component collection bottle are fixedly mounted on the top of the base, and the light component collection bottle and the heavy component collection bottle are respectively connected to two outlets of the cylinder.

[0012] In one possible design, a vacuum pump is fixedly mounted on the top of the base, and the vacuum pump is connected to the third outlet of the cylinder.

[0013] In this application, the extractant in the gas cylinder is liquefied after passing through a second extraction condenser. The second extraction condenser is also connected to the first extraction condenser via a pipeline and to an extraction vessel, so that the liquefied extractant is mixed with the entrainer in the first extraction condenser and then enters the extraction vessel to extract the solution to be extracted. After the extraction process is completed, the solution to be extracted, the extractant, and the entrainer in the extraction vessel enter the entrainer bottle for gas-liquid separation. The separated gas is discharged, and the separated liquid extract enters the cylinder through a pipeline. Nitrogen gas is continuously introduced from a nitrogen tank into the pipeline connecting the entrainer bottle and the cylinder to form an inert gas protective layer, ensuring that the material does not come into contact with air during the transfer process, effectively preventing the material from oxidizing and deteriorating. At the same time, the residual heat in the extraction vessel is heated by a heat exchanger before entering the cylinder. Inside the cylinder, to reduce secondary heating energy consumption, when the separated liquid extract enters the cylinder, it is evenly coated onto the molecular distillation heating surface by the rotating molecular distillation scraper and heated by the molecular distillation heating surface. After the liquid extract is heated, the light and heavy components in the liquid extract will escape from the liquid surface. Some molecules are captured by the distillation condenser. The light components enter the light component collection bottle, and the heavy components enter the heavy component collection bottle, thus achieving the separation of light and heavy components. The bottom of the cylinder is also connected to a vacuum pump through a pipe to evacuate the cylinder to achieve the vacuum degree required for molecular distillation. At the same time, air pumps are installed on the pipes between the second extraction condenser and the extraction vessel, the pipes between the first extraction condenser and the extraction vessel, as well as between the heat exchanger and the cylinder, the nitrogen tank and the cylinder, and the entrainer bottle.

[0014] Beneficial effects: In this utility model, the supercritical CO2 extraction and molecular distillation combined equipment for fragrances can protect the pipeline by introducing inert nitrogen gas, which can effectively prevent the material from oxidizing and deteriorating due to contact with air during the transfer process, thus ensuring the quality and active ingredients of the fragrance.

[0015] In this invention, the supercritical CO2 extraction and molecular distillation combined equipment for fragrances uses a heat exchanger for heat exchange, which allows the waste heat from the supercritical extraction stage to be recovered and utilized, reducing the secondary heating energy consumption of the molecular distillation feed and lowering production costs.

[0016] In this invention, the combination of supercritical CO2 extraction and molecular distillation achieves a seamless integration of the two technologies, shortening the production cycle and improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a supercritical CO2 extraction and molecular distillation combined device for fragrances proposed in this utility model;

[0018] Figure 2 This is a multi-angle structural schematic diagram of a fragrance supercritical CO2 extraction and molecular distillation combined device proposed in this utility model.

[0019] Figure 3 This is a cross-sectional structural diagram of the cylinder of a device for supercritical CO2 extraction and molecular distillation of spices proposed in this utility model.

[0020] In the diagram: 1. Gas cylinder; 2. Extraction vessel; 3. Entrainer bottle; 4. Cylinder; 5. Light component collection bottle; 6. Heavy component collection bottle; 7. Base; 8. First extraction condenser; 9. Heat exchanger; 10. Second extraction condenser; 11. Drive motor; 12. Nitrogen tank; 13. Gas pump; 14. Vacuum pump; 15. Molecular distillation scraper; 16. Molecular distillation heating surface. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1: Refer to Figure 1 and Figure 2A supercritical CO2 extraction and molecular distillation combined device for fragrances, used in the field of extraction and separation, includes a base 7. The top of the base 7 is fixedly installed with a gas cylinder 1, a first extraction condenser 8, an extraction vessel 2, an entrainer bottle 3, a nitrogen tank 12, and a cylinder 4. The first extraction condenser 8 and the extraction vessel 2, the nitrogen tank 12 and the cylinder 4, the extraction vessel 2 and the cylinder 4, and the gas cylinder 1, the extraction vessel 2, the entrainer bottle 3 and the cylinder 4 connected in sequence are all connected by pipes. A heat exchanger 9 is fixedly installed between the extraction vessel 2 and the entrainer bottle 3, and the inlet and outlet of the heat exchanger 9 are respectively connected to the pipes between the entrainer bottle 3 and the cylinder 4. The first extraction condenser 8 is connected to the extraction vessel 2 via a pipeline to achieve fluid transfer between them. The nitrogen tank 12 is connected to the cylinder 4 via a pipeline to allow nitrogen to be transported from the nitrogen tank 12 to the cylinder 4. The extraction vessel 2 is connected to the cylinder 4 via a pipeline to facilitate the entry of heat from the extraction vessel 2 into the cylinder 4. The gas cylinder 1, extraction vessel 2, entrainer bottle 3, and cylinder 4 are connected in sequence via pipelines to form a complete fluid passage, allowing the gas in the gas cylinder 1 and the entrainer in the entrainer bottle 3 to be transported according to a predetermined process. The inlet and outlet of the heat exchanger 9 are respectively connected to the pipeline between the entrainer bottle 3 and the cylinder 4 to exchange heat with the fluid passing through the pipeline to meet process requirements.

[0023] Reference Figure 2 A secondary extraction condenser 10 is fixedly installed on one side of gas cylinder 1, and the inlet and outlet of the secondary extraction condenser 10 are respectively connected to the pipelines of gas cylinder 1 and extraction vessel 2. The inlet and outlet of the secondary extraction condenser 10 are connected to the pipelines of gas cylinder 1 and extraction vessel 2, respectively, to condense the fluid transported from gas cylinder 1 to extraction vessel 2, thereby improving the extraction effect.

[0024] Reference Figure 2 Air pumps 13 are installed between the second extraction condenser 10 and the extraction vessel 2, between the first extraction condenser 8 and the extraction vessel 2, and between the nitrogen tank 12 and the cylinder 4. The inlets and outlets of the multiple air pumps 13 are respectively connected to pipelines. The inlets and outlets of the three air pumps 13 are respectively connected to pipelines to provide power for the fluid to be transported from the second extraction condenser 10 to the extraction vessel 2, to the fluid to be transported from the first extraction condenser 8 to the extraction vessel 2, and to the nitrogen to be transported from the nitrogen tank 12 to the cylinder 4.

[0025] Reference Figure 3A drive motor 11 is fixedly installed on the top of the cylinder 4. A molecular distillation scraper 15 is rotatably connected inside the cylinder 4, and the top end of the rotating shaft of the drive motor 11 extends above the cylinder 4. The output shaft of the drive motor 11 is fixedly connected to the top end of the rotating shaft of the molecular distillation scraper 15. A molecular distillation heating surface 16 is fixedly installed inside the cylinder 4, and a distillation condenser is fixedly installed at the bottom of the inner cavity of the cylinder 4. The drive motor 11 drives the molecular distillation scraper 15 to rotate inside the cylinder 4 to achieve the scraping operation. The molecular distillation heating surface 16 is used to heat the substances inside the cylinder 4 to achieve the molecular distillation process. The distillation condenser is used to capture some molecules.

[0026] Reference Figure 2 A light component collection bottle 5 and a heavy component collection bottle 6 are fixedly installed on the top of the base 7, and the light component collection bottle 5 and the heavy component collection bottle 6 are respectively connected to the two outlets of the cylinder 4. The light component collection bottle 5 and the heavy component collection bottle 6 are respectively connected to the two outlets of the cylinder 4 to collect the light components and heavy components separated after molecular distillation in the cylinder 4.

[0027] Example 2: Reference Figure 3 An improvement upon Embodiment 1 is made: a vacuum pump 14 is fixedly installed on the top of the base 7, and the vacuum pump 14 is connected to the third outlet of the cylinder 4. The vacuum pump 14, connected to the third outlet of the cylinder 4, is used to perform a vacuuming operation on the cylinder 4, providing the required vacuum environment for the molecular distillation process.

[0028] However, as is well known to those skilled in the art, the working principles and wiring methods of the heat exchanger 9, the second extraction condenser 10, the drive motor 11, the nitrogen tank 12, the gas pump 13, the vacuum pump 14, and the molecular distillation heating surface 16 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0029] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A combined supercritical CO2 extraction and molecular distillation apparatus for flavoring, characterized by comprising: include: The base (7) has a gas cylinder (1), a first extraction condenser (8), an extraction vessel (2), an entrainer bottle (3), a nitrogen tank (12), and a cylinder (4) fixedly installed on its top. The first extraction condenser (8) and the extraction vessel (2), the nitrogen tank (12) and the cylinder (4), the extraction vessel (2) and the cylinder (4), and the gas cylinder (1), the extraction vessel (2), the entrainer bottle (3), and the cylinder (4) connected in sequence are all connected by pipes. A heat exchanger (9) is fixedly installed between the extraction vessel (2) and the entrainer bottle (3), and the inlet and outlet of the heat exchanger (9) are respectively connected to the pipes between the entrainer bottle (3) and the cylinder (4).

2. The equipment for supercritical CO2 extraction and molecular distillation of spices according to claim 1, characterized in that, A second extraction condenser (10) is fixedly installed on one side of the gas cylinder (1), and the inlet and outlet of the second extraction condenser (10) are respectively connected to the pipes of the gas cylinder (1) and the extraction vessel (2).

3. The apparatus for flavor supercritical CO2 extraction and molecular distillation according to claim 2, wherein, Air pumps (13) are provided between the second extraction condenser (10) and the extraction vessel (2), between the first extraction condenser (8) and the extraction vessel (2), and between the nitrogen tank (12) and the cylinder (4), and the inlet and outlet of the multiple air pumps (13) are respectively connected to the pipeline.

4. The apparatus for flavor supercritical CO2 extraction and molecular distillation according to claim 1, wherein, A drive motor (11) is fixedly installed on the top of the cylinder (4). A molecular distillation scraper (15) is rotatably connected inside the cylinder (4). The top end of the rotating shaft of the drive motor (11) extends to the top of the cylinder (4). The output shaft of the drive motor (11) is fixedly connected to the top end of the rotating shaft of the molecular distillation scraper (15). A molecular distillation heating surface (16) is fixedly installed inside the cylinder (4). A distillation condenser is fixedly installed at the bottom of the inner cavity of the cylinder (4).

5. The apparatus for flavor supercritical CO2 extraction and molecular distillation according to claim 1, wherein, The base (7) is fixedly installed with a light component collection bottle (5) and a heavy component collection bottle (6), and the light component collection bottle (5) and the heavy component collection bottle (6) are respectively connected to the two outlets of the cylinder (4).

6. The apparatus for flavor supercritical CO2 extraction and molecular distillation according to claim 1, wherein, A vacuum pump (14) is fixedly installed on the top of the base (7), and the vacuum pump (14) is connected to the third outlet of the cylinder (4).

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