TWM669958U - New generation low temperature supercritical extraction system - Google Patents

Abstract

This invention provides a new generation of low-temperature supercritical extraction system, including: a pre-treatment unit for cleaning the raw materials, a supercritical fluid extraction unit, and a separation unit. The supercritical fluid extraction unit includes a fluid storage tank for storing the extractant, a high-pressure reaction tank, a temperature adjustment device, and a pressure adjustment device. The extractant is pressurized by a pressure pump to form a supercritical fluid, and the supercritical fluid is used to extract the raw materials to be extracted to obtain a primary extract; the temperature adjustment device is used to increase and maintain the temperature of the supercritical fluid to above the critical point; the pressure adjustment device provides and maintains the pressure of the supercritical fluid above the critical point. The separation unit is used to guide the primary extract to the separation unit for separation to obtain an extract and a supercritical fluid.

Description

New generation low temperature supercritical extraction system

This invention is about a new generation of low temperature supercritical extraction system, especially about a new generation of low temperature supercritical extraction system that provides efficient, safe and environmentally friendly extraction method and meets the needs of high purity, high quality and green technology.

The new generation of low-temperature supercritical extraction technology has been widely used in the fields of food, medicine, cosmetics and natural product extraction. The new generation of low-temperature supercritical extraction technology can complete the extraction at a relatively low temperature, effectively retaining the activity of heat-sensitive components; carbon dioxide is usually used as an extractant, which is non-toxic and recyclable, reducing the impact on the environment. In addition, the extracted ingredients are of high purity and have no solvent residues, which meets the needs of high-end products.

As the consumer market's demand for natural and organic products increases, the new generation of low-temperature supercritical extraction technology is being applied to a wider range of raw material extraction, such as: extraction of medicinal plant ingredients, such as polyphenols, flavonoids, etc.; food additives, such as natural pigments, plant essential oils; and high-end cosmetic raw materials, such as antioxidants and active peptides. Modern supercritical extraction systems are developing towards automation and intelligence, equipped with precise temperature and pressure control devices and automatic data recording functions to reduce manual operation errors.

However, supercritical extraction systems require high-pressure equipment, such as high-pressure reactors, and precise temperature and pressure control devices, resulting in high initial investment costs. Therefore, for small and medium-sized enterprises or start-ups, the equipment purchase cost is a major barrier. Although low-temperature extraction consumes less energy than high-temperature technology, the overall energy consumption is still high due to the need to maintain a high-pressure environment and control fluid circulation. In particular, the energy consumption problem is particularly significant during the condensation and recycling of the extractant.

In addition, the extraction efficiency of some complex raw material components is still limited, especially polar or high molecular weight components, which may require additional co-solvents to reduce the pure green color of the system. The system design may need to be customized for specific raw materials, making it difficult to achieve universality. In addition, the system involves high-pressure and high-temperature operations, which requires high skills from operators and requires regular maintenance to ensure stable operation of the equipment. System pressure fluctuations or inaccurate temperature control may affect the extraction effect.

In summary, in order to overcome the above shortcomings, the newcomers in this case have invested a lot of R&D energy and spirit, constantly making breakthroughs and innovations in this field, hoping to solve the shortcomings of usage with novel technical means, not only to bring better products to society, but also to promote industrial development.

In view of the above problems and deficiencies, the creators of this new product have invested in long-term research and development and developed a new generation of low-temperature supercritical extraction system. In this new low-temperature extraction process, the temperature is lower than the traditional extraction method, which effectively protects the activity of heat-sensitive ingredients (such as vitamins, enzymes, and polyphenols) to ensure product quality. Secondly, using supercritical fluids (such as carbon dioxide) as extractants, no organic solvents are required, and high-purity target ingredients can be obtained, avoiding the potential harm of solvent residues to the human body and the environment. Supercritical fluids are non-toxic, non-polluting, and can be recycled, meeting the needs of sustainable development and green manufacturing.

To achieve the above purpose, the present invention provides a new generation low-temperature supercritical extraction system, which is suitable for low-temperature extraction and has a high nutrient extraction rate. The new generation low-temperature supercritical extraction system includes: a pretreatment unit, a supercritical fluid extraction unit and a separation unit. First, the pretreatment unit includes a cleaning device, which uses clean water or a cleaning agent to clean a plurality of raw materials to obtain a plurality of washed raw materials to be extracted.

Secondly, the supercritical fluid extraction unit is connected to the pre-treatment unit, and the supercritical fluid extraction unit at least includes: a fluid storage tank, a high-pressure reaction tank, a temperature adjustment device and a pressure adjustment device. The fluid storage tank is used to store an extractant; the high-pressure reaction tank is connected to the fluid storage tank through a pressure pump, and the extractant is pressurized by the pressure pump to form a supercritical fluid, and the supercritical fluid is used to penetrate, dissolve and extract the raw materials to be extracted to obtain a primary extract; the temperature adjustment device is connected to the high-pressure reaction tank, and is used to increase and maintain the temperature of the supercritical fluid to above the critical point; the pressure adjustment device is connected to the high-pressure reaction tank, and provides and maintains the pressure of the supercritical fluid above the critical point.

Furthermore, the separation unit is connected to the high-pressure reaction tank to guide the primary extract to the separation unit and perform separation to obtain the extract and the supercritical fluid.

In the new generation low-temperature supercritical extraction system of this invention, the temperature adjustment device includes a heater for heating the supercritical fluid in the high-pressure reaction tank and maintaining a stable temperature.

In this new generation of low-temperature supercritical extraction system, the pressure regulating device includes a pressure sensor and a pressure control valve, which are used to monitor and adjust the pressure in the high-pressure reactor to the required supercritical condition range in real time.

In this new generation of low-temperature supercritical extraction system, the separation unit includes a gas-liquid separation tank and a recovery pipeline, which is used to recover the supercritical fluid after separation and guide it back to the fluid storage tank for recycling.

In this new generation of low-temperature supercritical extraction system, the temperature adjustment device also includes a cooler, which can quickly reduce the temperature of the high-pressure reactor to room temperature after the reaction process is completed, so as to facilitate the separation and treatment of the initial extract.

In this new generation of low-temperature supercritical extraction system, the inner surface of the high-pressure reaction tank is a corrosion-resistant material, and the corrosion-resistant material is selected from stainless steel material, nickel-based alloy material or ceramic material.

In this new generation of low-temperature supercritical extraction system, the fluid storage tank has a cooling device to keep the extractant stored in liquid form at low temperature to prevent the extractant from evaporating prematurely.

In the new generation low-temperature supercritical extraction system of this invention, the supercritical fluid extraction unit includes a flow control device for accurately adjusting the flow rate of the supercritical fluid entering the high-pressure reactor.

In this new generation of low-temperature supercritical extraction system, the cleaning device includes an ultrasonic cleaning device to accelerate and improve the cleaning effect of the raw materials and further remove attached impurities.

In this new generation of low-temperature supercritical extraction system, the separation unit further includes a vacuum separation mechanism for improving the separation efficiency of the extracts in a low-pressure environment.

This new generation of low-temperature supercritical extraction system also includes an automatic control unit for monitoring and automatically adjusting temperature, pressure and fluid circulation rate.

The following is a list of preferred implementation examples based on the purpose and efficacy of this invention, and is described in detail with accompanying diagrams.

1: New generation low temperature supercritical extraction system

10: Pre-treatment unit

11: Cleaning device

12: Ultrasonic cleaning equipment

21: Fluid storage tank

211: Cooling device

22: High pressure reactor

23: Temperature adjustment device

231: Heater

232: Cooler

24: Pressure adjustment device

241: Pressure sensor

242: Pressure control valve

25: Flow control device

30: Separation unit

31: Gas-liquid separation tank

33: Vacuum separation mechanism

50:Automation control unit

Figure 1 is a block diagram of the new generation low-temperature supercritical extraction system of Example 1 of the present invention.

Figure 2 is a block diagram of the processing unit before the new generation of low-temperature supercritical extraction system created by this invention.

Figure 3 is a block diagram of the new generation low-temperature supercritical extraction system of Example 1 of the present invention.

Figure 4 is a block diagram of the supercritical fluid extraction unit of the new generation low-temperature supercritical extraction system of this invention.

Figure 5 is a block diagram of the separation unit of the new generation low-temperature supercritical extraction system created by this invention.

Figure 6 is a block diagram of the new generation low-temperature supercritical extraction system of Example 2 of the present invention.

In order to make the purpose, technical features and advantages of this creation more understandable to people in the relevant technical fields and to implement this creation, the attached diagrams are used to specifically explain the technical features and implementation methods of this creation, and better embodiments are listed for further explanation. The diagrams in the following text are for expressing the features of this creation, and are not and do not need to be fully drawn according to the actual situation.

Secondly, those who are familiar with this technology should also understand that the listed embodiments and attached drawings are only for reference and explanation, and are not used to limit this creation; the creations that can be easily implemented based on these records and modified or changed to complete are also considered to be within the scope of the spirit and intention of this creation, and of course, these creations are also included in the scope of the patent application for this creation.

Please refer to Figures 1 to 3, Figure 1 is a block diagram of the new generation low temperature supercritical extraction system of Example 1 of the present invention; Figure 2 is a block diagram of the processing unit before the new generation low temperature supercritical extraction system of the present invention; and Figure 3 is a block diagram of the new generation low temperature supercritical extraction system of Example 1 of the present invention.

As shown in Figures 1 to 3, the invention is a new generation low-temperature supercritical extraction system 1, which is suitable for low-temperature extraction and has a high nutrient extraction rate. The new generation low-temperature supercritical extraction system 1 includes: a pretreatment unit 10, a supercritical fluid extraction unit, and a separation unit 30.

As shown in Figures 1 to 3, the pre-treatment unit 10 includes a cleaning device 11 and an ultrasonic cleaning device 12. A plurality of raw materials are cleaned with clean water or a detergent to obtain a plurality of cleaned raw materials to be extracted. The main function of the ultrasonic cleaning device is to use high-frequency ultrasonic vibrations to generate tiny bubbles in the liquid, thereby removing dirt and impurities on the surface of the object. The tiny bubbles generated by the ultrasound can penetrate deeply into the surface of the object and its tiny holes, removing dirt that cannot be reached by general cleaning methods. Because the ultrasonic wave can be evenly propagated in the liquid, the equipment can ensure that every part of the object can be thoroughly cleaned.

Please refer to Figure 4, which is a block diagram of the supercritical fluid extraction unit of the new generation low-temperature supercritical extraction system of this invention.

As shown in Figures 1 to 4, the supercritical fluid extraction unit is connected to the pretreatment unit 10, and the supercritical fluid extraction unit at least includes: a fluid storage tank 21, a high-pressure reaction tank 22, a temperature adjustment device 23, a pressure adjustment device 24, and a flow control device 25.

The fluid storage tank 21 is used to store an extractant, that is, to store supercritical fluids required for the extraction process, such as solvents such as carbon dioxide and methanol. The fluid storage tank 21 has a cooling device 211, which is used to keep the extractant stored in liquid form at a low temperature to prevent the extractant from evaporating prematurely. It ensures a stable fluid supply and provides a fluid source required by subsequent devices. It usually has a sealing design to prevent fluid volatilization or leakage, and maintains appropriate pressure and temperature conditions.

The high-pressure reaction tank 22 is connected to the fluid storage tank 21 through a pressure pump. The pressure pump pressurizes the extractant to form a supercritical fluid, and the supercritical fluid is used to penetrate, dissolve and extract the raw materials to be extracted to obtain a primary extract. The high-pressure reaction tank 22 can provide high-pressure conditions to promote the supercritical fluid to perform an efficient extraction reaction. Its design can withstand high pressure and ensure safe operation. It can also extract target compounds from the sample to achieve the functions of dissolution and separation. In addition, the inner surface of the high-pressure reaction tank 22 is a corrosion-resistant material, and the corrosion-resistant material is selected from stainless steel materials, nickel-based alloy materials or ceramic materials.

Furthermore, the temperature adjustment device 23 is connected to the high-pressure reaction tank 22, and is used to raise and maintain the temperature of the supercritical fluid to above the critical point; the temperature adjustment device 23 controls the temperature of the fluid and the sample inside the high-pressure reaction tank 22 to reach a supercritical state, and the fluid has the characteristics of both liquid and gas. Maintaining stable temperature conditions ensures extraction efficiency and accuracy, and prevents excessively high or low temperatures from affecting the extraction process. The temperature regulating device 23 includes a heater 231 and a cooler 232. The heater 231 is used to heat the supercritical fluid in the high-pressure reactor 22 and keep the temperature stable. When the reaction process is completed, the cooler 232 can quickly reduce the temperature of the high-pressure reactor 22 to room temperature to facilitate the separation and treatment of the primary extract.

In addition, the pressure regulating device 24 is connected to the high-pressure reaction tank 22 to provide and maintain the pressure of the supercritical fluid above the critical point. The pressure inside the high-pressure reaction tank 22 and the entire system is adjusted to maintain the high pressure conditions required for the fluid to be in a supercritical state. Accurate pressure control is provided to avoid pressure fluctuations in the pressure regulating device 24 that affect the extraction effect. The pressure regulating device 24 includes a pressure sensor 241 and a pressure control valve 242, which are used to monitor and adjust the pressure in the high-pressure reaction tank 22 in real time to the required supercritical condition range.

The flow control device 25 is used to accurately adjust the flow rate of the supercritical fluid entering the high-pressure reactor 22. The rate at which the supercritical fluid enters the high-pressure reactor 22 is adjusted to ensure that the fluid supply is stable and meets the extraction technology requirements, prevent the flow rate from being too high or too low, and avoid affecting the extraction efficiency or process stability. In addition, the flow control device 25 coordinates the pressure adjustment device 24 and the operating conditions in the high-pressure reactor 22 to ensure that the system is in the best working state, prevent pressure changes caused by flow fluctuations, and ensure that the supercritical fluid remains in a stable state. The flow control device 25 is used for high-precision extraction operations that require fine adjustment of the flow rate to ensure that the extraction rate and purity of the target substance meet the requirements.

Please refer to Figure 5, which is a block diagram of the separation unit of the new generation low-temperature supercritical extraction system of this invention.

As shown in FIG5 , the separation unit 30 is connected to the high-pressure reaction tank 22, and is used to guide the primary extract after super-extraction from the supercritical fluid to the separation unit 30 for separation and collection, so as to separate a plurality of extracts and the supercritical fluid. The separation unit 30 includes a gas-liquid separation tank 31, a recovery pipeline and a vacuum separation mechanism 33, which are used to recover the supercritical fluid after separation and guide it back to the fluid storage tank 21 for recycling. The separation unit 30 further includes a vacuum separation mechanism, which is used to improve the separation efficiency of the extracts in a low-pressure environment.

Please refer to Figure 6, which is a block diagram of the new generation low-temperature supercritical extraction system of Example 2 of this invention.

As shown in FIG6 , the present invention embodiment 1 is substantially the same as embodiment 2, except that embodiment 2 further includes an automated control unit 50 for monitoring and automatically adjusting temperature, pressure, and fluid circulation rate. The automated control unit 50 monitors key parameters in the system in real time, such as temperature, pressure, flow rate, and time, to ensure that the new generation low-temperature supercritical extraction system 1 always remains within the set operating conditions to avoid abnormal conditions, such as excessive pressure or unstable temperature. The automated control unit 50 is a supercritical extraction system with main functions including improving operation accuracy, increasing production efficiency, reducing manual involvement, enhancing safety, and supporting data analysis and process optimization. This enables the new generation of low-temperature supercritical extraction system 1 to handle diverse extraction needs more stably and efficiently.

It should be noted that each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the embodiments can be referenced to each other. In addition, the different parts between the embodiments can also be used in combination with each other, and this invention does not limit this.

In addition, it should be recognized that although the present invention has been disclosed as a preferred embodiment, the above embodiment is not intended to limit the present invention. For any technical personnel familiar with the field, without departing from the scope of the present invention, the above disclosed technical content can be used to make many possible changes and modifications to the present invention, or to modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the present invention, still falls within the scope of protection of the present invention.

1: New generation low temperature supercritical extraction system

10: Pre-treatment unit

21: Fluid storage tank

22: High pressure reactor

23: Temperature adjustment device

24: Pressure adjustment device

25: Flow control device

30: Separation unit

Claims (11)

A new generation low-temperature supercritical extraction system is suitable for low-temperature extraction and has a high nutrient extraction rate. The new generation low-temperature supercritical extraction system includes: A pretreatment unit, including a cleaning device, using clean water or a cleaning agent to clean a plurality of raw materials to be extracted to obtain a plurality of washed raw materials to be extracted; A supercritical fluid extraction unit, connected to the pretreatment unit, the supercritical fluid extraction unit at least includes: A fluid storage tank for storing an extractant; A high-pressure reaction tank is connected to the fluid storage tank through a pressure pump, and the extractant is pressurized by the pressure pump to form a supercritical fluid, and the supercritical fluid is used to penetrate, dissolve and extract the raw materials to be extracted to obtain a primary extract; A temperature adjustment device is connected to the high-pressure reaction tank, which is used to increase and maintain the temperature of the supercritical fluid to above the critical point; A pressure adjustment device is connected to the high-pressure reaction tank to provide and maintain the pressure of the supercritical fluid above the critical point; and A separation unit is connected to the high-pressure reaction tank and is used to guide the primary extract to the separation unit and perform separation to obtain a plurality of extracts and the supercritical fluid. A new generation low-temperature supercritical extraction system as described in claim 1, wherein the temperature regulating device includes a heater for heating the supercritical fluid in the high-pressure reaction tank and maintaining a stable temperature. A new generation low-temperature supercritical extraction system as described in claim 1, wherein the pressure regulating device includes a pressure sensor and a pressure control valve for real-time monitoring and adjusting the pressure in the high-pressure reaction tank to the required supercritical condition range. As described in claim 1, the new generation low-temperature supercritical extraction system, wherein the separation unit includes a gas-liquid separation tank and a recovery pipeline for recovering the supercritical fluid after separation and guiding it back to the fluid storage tank for recycling. As described in claim 1, the new generation low-temperature supercritical extraction system, wherein the temperature regulating device also includes a cooler, which can quickly reduce the temperature of the high-pressure reactor to room temperature after the reaction process is completed to facilitate the separation and treatment of the initial extract. A new generation low temperature supercritical extraction system as described in claim 1, wherein the inner surface of the high pressure reaction tank is a corrosion resistant material, and the corrosion resistant material is selected from stainless steel material, nickel-based alloy material or ceramic material. The new generation low-temperature supercritical extraction system as described in claim 1, wherein the fluid storage tank has a cooling device for keeping the extractant stored in a liquid state at a low temperature to prevent the extractant from evaporating prematurely. A new generation low-temperature supercritical extraction system as described in claim 1, wherein the supercritical fluid extraction unit includes a flow control device for accurately adjusting the flow rate of the supercritical fluid entering the high-pressure reactor. A new generation low-temperature supercritical extraction system as described in claim 1, wherein the cleaning device includes an ultrasonic cleaning device for accelerating and improving the cleaning effect of the raw materials and further removing attached impurities. The new generation low-temperature supercritical extraction system as described in claim 1, wherein the separation unit further includes a vacuum separation mechanism for improving the separation efficiency of the extracts under a low-pressure environment. The new generation low temperature supercritical extraction system as described in claim 1 further includes an automatic control unit for monitoring and automatically adjusting the temperature, pressure and fluid circulation rate.