What Are The Characteristics of Supercritical Fluid CO2 Extraction Equipment?
What Are The Characteristics of Supercritical Fluid CO2 Extraction Equipment?
(1) It can be extracted at near room temperature (35-40 C) and in the presence of CO2, effectively preventing the oxidation and escape of heat-sensitive substances. Therefore, all the components of medicinal plants are maintained in the extracts, and the substances with high boiling point, low volatility and easy pyrolysis can be extracted below the boiling point temperature.
(2) SFE is the cleanest extraction method. Because organic solvents are not used in the whole process, there is no residual solvent in the extract, and it also prevents the toxicity of the extraction process to human body and environmental pollution. It is 100% natural.
(3) Extraction and separation are combined into one. When the CO2-SCF containing dissolved substances flows through the separator, the CO2 and the extract become two phases (gas-liquid separation) rapidly because of the pressure drop, and they are separated immediately, which not only has high extraction efficiency, but also has less energy consumption and saves cost.
(4) CO2 is a kind of inert gas, the extraction process does not occur chemical reactions, and is a non-flammable gas, odorless, non-toxic, so the safety is good;
(5) CO2 is cheap, high purity, easy to obtain, and recycled in the production process, thereby reducing costs;
(6) both pressure and temperature can be used as parameters for adjusting the extraction process. The purpose of extraction is achieved by changing temperature or pressure. Pressure fixed, change the temperature can separate the material; Conversely, temperature fixed, reduce the pressure to separate the extract, so the process is easy to master, and extraction speed is fast.
(1) High extraction speed and liquid extraction, especially suitable for separation and extraction of solid substances.
(2) It is suitable for separating heat-sensitive substances from oxidizable substances because its energy consumption is lower than that of ordinary distillation.
(3) The heat transfer rate is fast and the temperature is easy to control.
(4) Suitable for separation of volatile substances.
Supercritical Fluid CO2 Extraction Equipment Technical Application
Hippophae rhamnoides oil extraction and separation, coffee bean decaffeine, tobacco nicotine, coffee spices extraction, hops in the extraction of useful ingredients, star oil rattan extraction of high purity star oil, soybean oil and yolk from the extraction of cholesterol, extraction of allicin.
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