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Do you have any questions?

  • Is caffeine soluble in liquid co2?

    Supercritical CO2 helps act as a solvent to give the coffee bean solvent-like properties to dissolve the caffeine and extract it out of the coffee bean. Because it has a lower viscosity than liquid CO2, allowing it to move through and around the coffee bean more efficiently without too much pressure.
  • Is co2 extraction organic?

    CO2 Botanical Extracts are completely natural and exceptionally pure. These highly concentrated plant extracts are free of solvent residues and impurities such as heavy metals. All CO2 Extracts are oil soluble.
  • Why is co2 better than ethanol?

    CO2 is highly tunable. With CO2 you can vary factors such as time, temperature, and pressure to create different products.  Ethanol products need to go into more stages of refinement to be turned into various products such as distillate.
  • Does co2 extraction remove terpenes?

    CO2 extraction is good for preserving terpenes because it is a cold separation process that can protect delicate plant compounds. Some methods may also use ethanol to help remove terpenes before fully extracting cannabis buds.
  • Is co2 extraction better?

    CO2 extraction is also much better for the environment. CO2 gas is natural, so if it escapes into the air during  extraction it won't do any harm. It can also be recycled, making this method much more sustainable. Since the solvent isn't toxic, people working with this extraction method don't face any health risks.
  • What is full spectrum co2 oil?

    Full spectrum extracts, often called whole plant extracts, maintain the full profile of the cannabis plant. They contain a variety of cannabinoids, including THC, THCa, CBD, CBDa, CBG, and CBN, as well as terpenes and other compounds such as flavonoids, proteins, phenols, sterols, and esters.

Supercritical CO2 Extraction Machine

What is Supercritical CO2 Fluid Extraction Machine (What is supercritical co2 extraction?)

Supercritical Fluid Extraction (SFE) is a type of extraction method technology using supercritical fluid as the solvent to separate the valuable ingredients from the raw biomass material. For example to extract essential oils from all kinds of plants, like CBD oil, ginger oil, nutmeg oil, black coffee oil, vanilla oil, seabuckthorn seeds oil, frankincense oil, nicotine etc. The most popular supercritical fluid is carbon dioxide (CO2) as CO2 is clean, innocuous and easily to get, especially the CO2 fluid has the characteristic of super solubility for fat-soluble ingredients at supercritical state. In addition, the solubility of ingredients of different polarities, different density, and different molecular weights will change when we set different parameters of pressure, temperature and flow rate. Therefore, we can optimize the best process conditions to separate the valuable ingredients by adjusting the temperature, pressure and flow rate.


What does Careddi Supercritical CO2 Extraction System consist of

Careddi Supercritical CO2 Extraction System (Careddi SCFE) is well designed for effective oil extraction and easily operation. It is a completely configured system consists of extraction vessels (extractors), separation vessels (separators), Operation front panel, High pressure CO2 Pump, Chilling system, heating system, Pressure regulator valve, Co-solvent pump, CO2 Storage tank, CO2 Recovery pump etc. The users can run the machine to produce essential oils only need to provide with electricity and CO2.  Please refer to following flow diagram of the whole system of Careddi CO2 Extraction machine.

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Working principle and process of SCFE Extraction and Separation

(How does co2 extraction work?)

The CO2 will become into liquid when the temperature is between 5-8℃ and the pressure is above 4.5Mpa. The chiller system can keep the CO2 circulation system in the temperature range of 5-8℃.The CO2 high pressure pump can pump the CO2 liquid into the extractors and increase the pressure to high pressure range of 35Mpa(the maximum pressure can be customized), and the pressure can be adjusted by back pressure regulator valve. The heating system can provide a suitable temperature to extractors and separators, and the temperature can be adjusted automatically.
 The extraction and separation process can be described as following steps.
 1.Start running the chiller and heating system.(temperatures will meet the set points)
 2.Loading raw biomass material into the cylinder of extractor.
 3.Start running the CO2 high pressure pump, pumping CO2 into the extractor to increase the pressure to the optimized parameter. (Most of materials extraction pressure is between 15-35Mpa).
 4.After the pressure meet the set point, open valve and let CO2 fluid circulated in the whole system. The CO2 fluid will enter into the extractor from the bottom, come out from top through raw biomass material. The valuable ingredients will be dissolved into the CO2 when CO2 go through, and come out together with CO2. The extraction happened.
 5.The mixture of CO2 and valuable ingredients which come out from extractor will enter into the separators. The valuable ingredients will be separated with CO2 in separators because of  the separator has lower pressure, the valuable ingredients will be stored inside the separator and can be collected after 30 min extraction time.
6.Normally the extraction time is around 90 min if the oil rate is less than 20%, extraction time will be longer if the material oil rate is higher.


Applications of Careddi Supercritical CO2 Extraction machine (essential oil extractor)

Careddi CO2 Extraction machine widely used as plant oil extractor for many kinds of plants.
 Supercritical CO2 extraction for hemp oil/cannabis oil/CBD oil/THC oil, hemp crude oil.
 Supercritical CO2 extraction for black coffee oil
 Supercritical CO2 extraction for de-caffeine
 Supercritical CO2 extraction for frankincense oil
 Supercritical CO2 extraction for tobacco leaves oil, nicotine
 Supercritical CO2 extraction for all kinds of seeds like grape seeds oil, seabuckthorn seeds oil, tea tree seeds oil.
 Supercritical CO2 extraction for all kinds of herbs like citronella oil, angelica oil, orange peel oil, lemon grass oil, evening primrose oil, rosemary oil etc.
Supercritical CO2 extraction for all kinds of spices like ginger oil, cinnamon oil, nutmeg oil, clove oil, turmeric oil, vanilla oil, chili color oil, black pepper oil, mint oil etc.


Sea Buckthorn Seeds Oil
Grape Seed Oil
Ginger Oil
Sundrops Oil
Wheat Embryo Oil
Tobacco Leaves Essence Oil
Turmeric
Garlic Oil
Hops Extract
Medlar Seed Oil
Lycopin
Fish Oil



Advantages of Careddi Supercritical co2 extraction machine(co2 extractor)

1.Unique highly integrated system, small size occupied but high efficiency
 99% of the system assembled before shipping, easily installation at customer site
 2.Max working pressure 50Mpa(500 Bar),
 3.Pressure and temperature can be easily adjusted and controlled precisely
 4.Friendly CO2 flow route design with self-explanatory flow chart for easy training and easy operation
 5.Special design on the pressure-balance, can save CO2 consume maximum
 6.High efficiency CO2 high pressure pump, can increase the pressure in shortest time
 7.Special design inside the pump piston system, to let the pump has very long life time with few maintenance requirements.
 8.High quality Back-pressure regulator
 9.Triple safety protection, over pressure protection gauge and safety valves
 10.Low extraction temperature which is suitable for extraction and purification of heat sensitive valuable ingredients.
 11.Fast extraction speed, completely extracted, no toxicity, non-flammable, safe application an non-pollution upon environment.
 12.Being capable to provide inert environment to avoid oxidation of the products and affection of effective content of extracts.
 13.No residue of solvent, no nitrate and ions of heavy metal
14.Careddi CO2 extraction system is the best method for extracting crude CBD oil(cannabinoid oil, and refining to get T-free CBD oil)


About US

Careddi Supercritical Limited is the largest manufacturer of Supercritical CO2 Extraction machine in China and specialized in designing and manufacturing supercritical co2 extraction system over than 30 years. Till now, Careddi had produced full capacity range supercritical co2 extraction machines from small lab scale to large industrial commercial production scale. Careddi sold and installed hundreds of CO2 extraction projects successfully in the countries of USA, Canada, Australia, Spain, Greece, Hungary, Switzerland, Sweden, Italy, Serbia, Ukraine, Netherland, Slovenia, Albania, Bulgaria, Romania, Argentina, South Africa, Uganda, Conga, Malawi, Madagascar, Columbia, Malaysia, India, Thailand, etc. All the buyers are satisfied with our high quality machines and great service.
 Careddi can supply whole production line of full spectrum CBD/THC oil/isolate as well.

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Following are some projects for your reference.
 
https://www.youtube.com/channel/UCTpYz1aRo-PUlfqSNGPX5tA (Careddi Youtube Channel )
 
https://youtu.be/yG4CRG8f4_4   (16 MACHINES, EACH MACHINE 300L, KENTUCKY)
 
https://youtu.be/1h8um38wi8Y   (14 MACHINES, EACH MACHINE 300L, KENTUCKY)
 
https://youtu.be/i9xpOqTHXUY  (6 MACHINES, EACH MACHINE 300L, COLORADO)
 
https://youtu.be/Dj_RRDz0Wn4    (CAREDDI SUPERCRITICAL INTRODUCTION VIDEO)

Get in touch

Address: No.58, Qiaogang Rd, Hi-tech District, Haian City,
Jiangsu Province, China.
Tel: +86-13601453077
Skype: cathywu2007
Whatsapp: 0086-13601453077
E-Mail: info@careddi.com

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