Supercritical fluid extraction (SFE) is a new chemical industry that uses supercritical fluids to separate, recover and purify matter at critical temperatures and critical pressures. The technology is environmentally friendly, known as "green technology".

25L*2 Supercritical CO2 Extraction Equipment Video:

25L*2 Supercritical CO2 Extraction Equipment Main Technical Parameters:

a. Highest Working Pressure: 40-100MPa

b. Working Temperature: 25~80℃

c. CO2 Flow Rate: 0~300L/h

d. Extraction Vessel Capacity: 25L

e. First Separator: 17L/16MPa

f. Secondary Separator: 17L/12MPa

g. Installed Capacity: 65KVA

h. Refrigerating Capacity: 20,000 Kcal

i. Drying Purifier: 3L/40MPa

j. CO2 Storage Tank: cooled by air, volume is 24L, maximum working pressure is 10MPa. Double cooling through jacket and coil structures.

k. Voltage: 380V (AC)
 

Supercritical Fluid Extraction Technology Advantage：

1.Environmental protection.

2.Extraction product improve the health.

3.Improve the food safety.
 

Supercritical Fluid Extraction Technology Characteristic:

1. Low viscosity and high air permeability.

2. Excellent solubility with similar liquid density.

3. The solubility of a substance depends on the density of the solvent. By changing the pressure and the temperature, we can achieve a change in the solubility parameter.
 

Why we choose CO2 as Supercritical fluid(SCF)?

1. CO2 is an inert gas that does not chemically react during extraction and is not harmful to the environment;

2. Carbon dioxide is not flammable, not easy to explode;

3. CO2 gas is easy to get, cheap, can be recycled in production.
 

Comparison With Traditional Extraction Technology:

NO.	Traditional Extraction Technology	Supercritical Fluid CO2 Extraction
1	Solvent residue	NO Solvent residue
2	Solubility can not be changed	By changing the pressure and temperature, we can achieve changes in solubility
3	Under the influence of high temperature, heat-sensitive substances are destroyed	The extraction takes place at low temperatures and the material will not be destroyed
4	Few choice of solvents	Wide selection (solubility controllable (pressure-temperature))
5	An extra method is needed to separate the solvent	The separation is simple and efficient without any residue
6	Most solvents are unsafe and contaminate the environment	Ecological safety, does not affect the environment

Supercritical Fluid Extraction Technology Application:

Application Fields of CO2 SCFE
Field Of Application	Application
Pharmaceutical	Extraction of effective components from TCM, concentration and refinement of materials for medicine, adn separation and refinement of lipid mixture.
Food Industry	Purification of hop and the plant/animal oil, decaffeination of coffee beans, and extraction of various seasonings and plant pigments.
Cosmetic Essence/Spices	Separation and refinement of natural/synthetic spices, extraction of raw material for cosmetics.
Chemical	Separation of hydrocarbon, refinement of organic synthetic raw material, separation of azeotropic mixure, recycling of raw material after reaction, and dehydration of water solvent of organic solvent.
Others	Removal of oil from superconductor, semiconductor, ceramics and petroleum core, synthesis of enzyme, cleaning of precision parts, supercritical reaction, dyeing and printing, etc.

 

Extration of Natural Constituents From Plants By SCFE
Plant	Rhodiola sachalinensis A.Bor.	Glycyrrhiza	Taxus	Astragalus	Folium Ginseng	Musk deer
Constituent	Salidroside	Glycyrrhizic acid	Taxol	Astragalus	Ginsenoside	Musk
Plant	Rhizoma Chuanxiong	Flos Caryophyli	Amomum compactum	Antibiotic	HerbaArtemisiae Annuae	Evening primrose
Constituent	Oil of Rhizoma Chuanxiong	Essential oil of Flos Caryophyli	Oil of amomum compactum	Exsolution	Abrotine	Oil of evening primrose
Plant	Bottom oil	Yolk powder	Soy bean	Grape seed	Medlar seed	Fructus Hippophae
Constituent	Vitamin E	Lecithin	Phosphatide	Oil of grape seed	Oil of medlar seed	Oil of Fructus Hippophae seed
Plant	Wheat	Corn	Rosemary	Cumin	Fish	Zingiber Corallimum
Constituent	Germ oil	Germ oil	Rosemary Oil	Cumin oil	DHA EPA	Zingiber oil
Plant	Tea	Hop	Chili	Garlic	Zanthoxylum L.	Ginkgo
Constituent	Polyphenols of tea	Hop concrete	Chili pigment	Garlic oil	zanthoxylum oil	ginkgo flavone
Plant	Sweet osmanthus	Rose	Jasmine	Rice shell	Tomato	Lavender
Constituent	Osmanthus oily flavor	Rose flavor	Jasmine flavor	Aerogel	Lycopene	Lavender oil