Extraction Part Of Ethanol System

The full name of this system is a Deep-cold ethanol system or low-temperature ethanol system, it’s divided into two parts, one is the extraction part and another is the concentration part.

The full name of this system is a Deep-cold ethanol system or low-temperature ethanol system, it’s divided into two parts, one is the extraction part and another is the concentration part.

The extraction part also can be divided into two parts, one is the cooling system and another is the extraction system.

Cooling system

1.     Solvent storage tank

2.     solvent pump

3.     liquid nitrogen tank

4.     Cooling exchanger

5.     Circulation cooling pump

6.     Pre-cooling tank

What’s that and How does it work?

Cooling is a step before the extraction and is important for the whole system, It’s the key point of this technique, because the cooling temperature needs to be below -70 degrees.     

1.     Start the Solvent Pump to flow the 95% ethanol to the Pre-cooling Tank from the Solvent Storage Tank. On censoring the real level value of ethanol in the Pre-cooling Tank reaches the Top-Limit set, the Solvent Pump will stop automatically.

2.     Start the Circulation Cooling Pump to let the 95% ethanol flow in circulation between the Pro-cooling Tank and the Cooling Exchanger.

3.     First, open the valve which is on the Liquid Nitrogen Tank and controls the liquid nitrogen outlet

Then, open the valve which is connected to the Cooling Exchanger and with a long hand bar. Soon after this valve is opened, the liquid nitrogen will come into the exchanger and in the process of becoming vapor. At the same time, you will find a vapor or smoke coming out from the top of the exchanger, this is the nitrogen gas.

4.     On censoring the real temperature value of ethanol in the Pre-cooling Tank reaches the target value set, the Circulation The cooling Pump will stop automatically.

One batch of pre-cooling work ends, the solvent is ready for putting into the extractor.       

Extraction devices

Extraction part

What’s that and how does it work?

The left tank in the photo is the Extraction tank, it's jacket tank, the cooled ethanol will be pumped in the tank and the jacket, then we input the biomass from the top feed port and soak it with frozen ethanol and the extraction tank is equipped with a stirrer, so the biomass and chilled ethanol also will be mixed and stirred. This extraction also equipped with Pneumatic discharging door. When the extraction completed, control the air compressor, the pneumatic door will be opened to discharge the used biomass;

Two filters are in the middle of the picture, the filtration accuracy of the filter can be adjusted by customers’ requirements. Usually the filtration accuracy is 40 mesh;

The right tank is the Extract liquid storage tank stores the extracted liquid here and waiting for concentration, that means the extraction process in completed.

Essential Oil Distiller

 This machine is usually used to extract the essential oil from flowers, plants, citrus, leaves, wood, resin, etc.

The machine consists of an extraction part, cooling part, oil-water separation part, storage part, electric control part.

1.  Extraction part:

The raw material will be loaded into this tank for extraction, which by steam distillation or water distillation to extract. And the extract tank has a material basket, the staff can put the material in the basket in the extraction tank. When the extraction finished, the staff just needs to take out the material basket to remove the material. 

2.  Cooling part:

The steam passes through raw material and vaporizes oil, mixtures of steam and oil vapors go into the condenser, after the cooling, oil formed. The outer wall of the condenser is protected by stainless steel, and the internal part is composed of multi-layer coils, so as to achieve better cooling effect.

3.  Oil water separation part: 

When oil formed, it passes through the oil-water separator to separate the pure oil and pure dew through the different density of water and oil. We can see clearly the result of the separation.

4.  Storage part:

When the oil and water are separated, the separated dew is stored in the tank. It's easier to see where he's stored through a mirror. And we can recycle it.

5.  Electric control part:

This machine is controlled by the electric cabinet. If you use the boiling way with the material, the electric cabinet will heat the heat conduction oil first, then pass the temperature to the water and material to produce the essential oil. This is more controllable and safer than direct heating.

 

And if you need to know more, please check the following Youtube link. 

https://www.youtube.com/watch?v=EOD8YCN72Us

Supercritical CO2 Extraction Machine With Distillation Column

 

1. Main structure composition:

l  refrigeration system

l  CO2 storage tank

l  mixer,

l  Filter

l  extraction kettle

l  separation kettle

l  distillation column

l  carbon dioxide injection pump

l  carrier pump

l  pressure control system

l  Flowmeter

l  cold and hot water circulation system,

l  lifting device

l  joint operation platform,

l  pipeline components

l  safety protection device

l  data acquisition

l  electric control cabinet rack panel etc.

The whole set of equipment is made of stainless steel containers and pipes commonly used in the medicine and food industry, and the bracket is made of stainless steel. The auxiliary equipment and system can meet the requirements of supercritical extraction and process. The extraction of kettles has high safety and reliability. The extraction medium is CO2, which can be recycled. All equipment is arranged in a centralized way, neat, compact, and reasonable. The operation is convenient, intuitive, safe, and reliable.

Reference picture:

Working description of CO2 system:

CO2 enters the condenser from the steel cylinder and is filled into the CO2 storage tank. The liquid CO2 in the CO2 storage tank is pumped into the heat exchanger by the CO2 main pump and heated by the heat exchanger, so that the CO2 phase changes into a supercritical state and meets the requirements of the process flow. The supercritical CO2 enters the extraction kettle from the bottom of the extraction furnace and fully contacts with the material, and the material is extracted in the extraction kettle.

The extracted mixture and CO2 from the top outlet of the extraction kettle, through the high-pressure control valve at the outlet of the extraction kettle, enters the primary separation kettle for analysis. The process conditions of the first stage separation kettle were controlled to separate the extraction mixture. The analyte was removed from the bottom of the separation vessel.

The extraction mixture that does not meet the analytical conditions is regulated by the high-pressure control valve at the outlet of the primary separation kettle to enter the secondary separation kettle. The process conditions of the secondary separation kettle are controlled, and the extraction mixture is analyzed and separated again. The analyte was removed from the bottom of the separation vessel. Finally, the gaseous CO2 is filtered into the condenser through the filter. After condensation, the gaseous CO2 becomes liquid and enters the CO2 storage tank for repeated circulation extraction.

Faster,Higher efficiency,Get essence direct!

 

The machine uses organic solvent or water to extract the essence from herbs, flowers, seeds, leaves, and so on.

The machine consists of an ultrasonic extraction part, filtration part, solvent recovery part, vacuum part, and electrical control part

Low-Temperature Circulating Pump

Ultrasonic extraction part 

The solvent and raw material will be loaded into this tank for extraction. The ultrasonic device is attached to the tank for speeding up the reaction. Ultrasonic device to the outer wall of the tank is better than ultrasonic device inside the tank because the former can prevents heavy metal pollution;

The filtration part consists of two filters and extracts the liquid storage tank. After extraction, the extracts liquid will be filtered and then stored in the tank. The filtration accuracy usually is 30-50 micron, but it also can be adjusted.

Solvent recovery part consists of a steam generator, heater, evaporator recovered solvent storage tank with condenser and chiller.

Steam generator produces steam and enters into the outer layer of the heater. The extracts liquid is circulated between the inside layer of the heater and evaporator. In this way, the extracts liquid is heated, and the solvent is evaporated.

Then the evaporated solvent will be condensed and enter into storage tank for reuse.

The capacity of the evaporator can be customized to large, such as 1000L/H. And the whole evaporation process is under vacuum condition, it will increase the heating efficiency and save much energy;

Vacuum part consists of a vacuum pump, buffer tank, circulated liquid storage tank. The vacuum part is mainly used to provide vacuum condition and pressure difference for separating extracts liquid from used raw material, filtration, and solvent evaporation.

Electrical part control all electrical switch, it’s more convenient to control the whole machine. And the electrical cabinet needs to be placed in a separated room, it will be safer when the solvent is volatile and flammable;

Working video of our ultrasonic solvent extraction machine can be checked in our Youtube account: https://www.youtube.com/watch?v=seYlwzLl3Qs