What about supercritical CO2 extraction equipment?

1L 200,000 20L 800,000.

I have done so many supercritical CO2 extractions before, but none of them have explained the supercritical fluids that I know about

What is a supercritical fluid?

The simple explanation is a fluid that exceeds a critical point

The following figure is the three-phase diagram of the existence of matter, the substance has three states (solid, liquid, gaseous), and the critical point is the point where the critical temperature and critical pressure of the substance are located (the point where liquid and gas coexist), and the state beyond the critical temperature and critical pressure is called the supercritical state, this state exists at the same time and then the properties of liquid and gaseous, that is to say, supercritical Tata will have high diffusion of gaseous state and high solubility of liquid state, therefore, supercritical fluid will be widely used in recent years, whether it is extraction, washing, Synthesis reaction, dyeing and sterilization, etc. There are many more technologies that can be applied to be developed.

Every fluid will have a tipping point

However, not all fluids are used for extraction

Fluids may be safe in normal conditions, but not necessarily safe when they reach a supercritical state

For example: water

In normal conditions, it is safe to use with care in solid, liquid or gaseous form, but when it reaches supercritical water, it is a highly oxidizing fluid, and it is most often found to be used to treat waste (soil metals or waste liquid), so it is important to know whether its properties are suitable for whatever fluid is to be used.

The use of supercritical carbon dioxide in the extraction is very common, carbon dioxide it belongs to the bias of non-polar substances, therefore, most of them are used to extract essential oils, and the first industrial use of micro-extraction in the removal of caffeine in coffee beans in historical data, caffeine is a polar substance (water-soluble), the traditional extraction uses solvents to remove caffeine, the European Union listed organic solvents as a prohibited object in the early days, so supercritical carbon dioxide will be developed to remove caffeine, but the problem comes

The aroma in the coffee beans is lost with carbon dioxide (dissolved in carbon dioxide), and the caffeine is not very soluble in carbon dioxide, so how to remove the caffeine without preserving the aroma.

Scientists add water (co-solvent co-solvent) to the extraction process, but the aroma will also be dissolved in carbon dioxide, so the separation process will be done to separate the caffeine-dissolved water from the aroma-dissolved carbon dioxide for the first time, and then the aromatic carbon dioxide will be injected into the coffee beans, and then the carbon dioxide and the coffee beans will be separated from the aroma for the second time, and then the carbon dioxide ** will be used again.

In the above process, it will be found that supercritical is not difficult, everything is just a phase change, as long as you understand the basic physical properties of supercritical fluid, you can use it for many technical applications.

I will be able to understand that there is no such thing as supercritical technology, there is only one way, which is to do the experiments myself, and there is no way to learn more than to discover and experience it myself, and of course I am grateful to my colleagues, because they don't want to do it before I have the opportunity to do it

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At that time, we purchased the supercritical CO2 extraction equipment, and there were two Kaideli units in Jiangsu Hai'an Hua'an, Jiangsu, with a chiller on it. The chiller itself has qualified suppliers, so I am more impressed by this matter, and the manufacturer is a bit expensive. So they didn't accept their proposal.

Haian Hua'an, equipped with a chiller on it.

Summary. Yes, the supercritical CO2 extraction equipment can not be filled, but pay attention to the operation steps to avoid safety problems. The operation steps of the supercritical CO2 extraction equipment are as follows:

1.First of all, check the security of your device and make sure that it is safe to avoid accidents. 2.

Next, check the control system of the equipment to ensure that the equipment is operating properly. 3.Then, check the exhaust system of the device to ensure that the device is venting properly.

4.Next, check the feeding system of the equipment to ensure that the equipment is properly filled. 5.

Finally, check the collection system of the equipment to ensure the proper collection of the equipment. The operating procedures of supercritical CO2 extraction equipment require the operator to follow the correct steps to ensure the safety and proper operation of the equipment. If it is not filled, the feeding amount of the equipment can be adjusted according to the actual situation to ensure the normal operation of the equipment.

Yes, the supercritical CO2 extraction equipment can not be filled, but pay attention to the operation steps to avoid safety problems. The operation steps of the supercritical carbon dioxide extraction equipment are as follows:1

First of all, check the security of your device and make sure that it is safe to avoid accidents. Slippery 2Next, check the control system of the equipment to ensure that the equipment is operating properly.

3.Then, check the exhaust system of the device to ensure that the device is venting properly. 4.

Next, check the feeding system of the equipment to ensure that the equipment is properly filled. 5.Finally, check the collection system of the equipment to ensure that the device is properly collected.

The operating procedures of supercritical CO2 extraction equipment require the operator to follow the correct steps to ensure the safety and proper operation of the equipment. If it is not filled, the feeding amount of the equipment can be adjusted according to the actual situation to ensure the normal operation of the equipment.

Can you add, I don't quite understand it.

Yes, supercritical CO2 extraction equipment can be done without topping. Supercritical CO2 extraction is a technique that uses the properties of supercritical CO2 to extract organic matter from solution. The supercritical CO2 extraction plant can be left unfilled because it can be operated at low pressures and the extraction time can be controlled, thus saving energy.

In addition, supercritical carbon dioxide extraction equipment also has the advantages of energy saving, environmental protection, safety and high efficiency, which can effectively improve extraction efficiency, reduce pollution and improve product quality. It can efficiently extract organic matter, and the extraction time can be controlled, so as to save energy. In short, the supercritical carbon dioxide extraction equipment can not be filled, it has the advantages of energy saving, environmental silver early protection, safety and high efficiency, which can effectively improve the extraction efficiency, reduce pollution and improve product quality.

Supercritical carbon dioxide.

The extraction technology is the most advanced separation technology in the world. It has the characteristics of low temperature, non-toxicity and high separation efficiency.

Rationale: Any gas has a "critical point", and the temperature and pressure corresponding to the gas at the critical point are called the critical temperature.

and critical pressure. When the temperature and pressure of a gas are higher than its critical temperature and critical pressure, the gas is said to be a supercritical fluid. At this point, the density of the fluid is close to that of the liquid, while its viscosity and diffusion coefficient.

Similar to ordinary gases, supercritical fluids with special properties generally have extremely strong solubility. For example, the gas is minus 270 degrees Celsius.

Left and right will liquefy. Using this principle, carbon dioxide gas is selected in a supercritical state.

When in contact with natural raw materials, the relevant natural ingredients will be dissolved in the supercritical fluid, and the separation of the active ingredients and raw materials is achieved. Then, by reducing pressure or heating method, the active ingredients extracted from the supercritical fluid are separated in the separator, that is, the high-quality active ingredients are obtained, which is the simple process of supercritical carbon dioxide.

Due to the unique safety and non-toxicity of carbon dioxide, it is known as green biological separation technology and is popular in developed countries such as Europe and the United States.

It is very suitable for the requirements of "green environmental protection" in today's society, and is an advanced separation technology with great development prospects.

The use of supercritical carbon dioxide extraction technology to isolate bioactive components from natural animals and plants and traditional Chinese medicine has broad market prospects and strong vitality.

Answer]: Carbon dioxide is used as an extractant, which is reported by the supercritical CO2

The fluid has the characteristics of gas and liquid, strong solubility, good mass transfer performance, colorless, tasteless, non-toxic, chemically inert, dull, non-combustible, noisy, bending and no residue and a series of advantages.

Summary. Hello, you need to do an EIA. Whether an EIA is required for a project or not, and whether the EIA is a report or a report form is based on the Ministry of Environmental Protection's "Catalogue of Classified Management of Environmental Impact Assessment of Construction Projects".

According to the new "Classified Management List of Environmental Impact Assessment of Construction Projects" implemented on June 1, 2015, the EIA report form needs to be prepared for the simple mixing or packaging of basic chemical raw materials, and the EIA report needs to be prepared for the rest. So your situation is the need for an EIA.

Do you need any certificates for CO2 supercritical extraction?

It is necessary to apply for a hazardous chemical certificate.

Hello, you need to do an EIA. Whether a project needs an EIA or not, and whether the EIA is a report or a report form is based on the provisions of the Ministry of Environmental Protection's "Catalogue of Classified Management of Environmental Impact Assessment and Demolition of Construction Projects".

According to the new Lunkaiqin "Catalogue of Classified Management of Environmental Impact Assessment of Construction Projects" implemented on June 1, 2015, the preparation of an EIA report form is required for the manufacture of basic chemical raw materials for simple mixing or packaging, and the preparation of an EIA report for the rest. Lap Bi Sun Cover: So your situation is subject to an EIA.

What are the certificates required for the employee operation certificate?

According to local policies.

1. The pressure of the cylinder is low and the gas is out, so replace the new bottle.

2. The temperature of the cylinder is low, the liquefied gas can not fully escape, the cylinder is installed with a heating jacket, note: the temperature can not exceed 31, and the pressure cannot be greater than.

3. The equipment pipeline is blocked, analyze where it is blocked, (1) there is moisture in the vertical finger of the material, and the CO2 cooling coil has moisture and freezes, release the coil gas and add absolute ethanol, shut down and wait for 1 hour, CO2 will blow out the ethanol, resume normal operation and wash once. (2) Plug in other pipelines, clean the tank, add anhydrous ethanol to the extraction tank, change the cleaning tank, and start the self-circulation for one hour.

4. The pump is broken, if there is air leakage, adjust the pump head and so on.

5. The particle size of the material will also have an impact (what other netizens say).

6,This system is complicated and complicated,It's nothing to say it's simple.,I've tried to tame the school this broken machine for 2 years.,I still have to coax it.,No way.,02 years of equipment.,You have to do a lot of traffic and high pressure.,There's no way to sock mold.,Sometimes it's repaired every two days.,Sometimes it's repaired twice a day.。