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Six Main Characteristics Of Supercritical Co2 Extraction Process

Supercritical CO2 extraction process

Supercritical CO2 fluid extraction technology is a new separation technology in modern chemical separation. It has the characteristics of fast mass transfer rate, strong penetration ability, high extraction efficiency and low operating temperature. This technology has been widely used in medicine, food, chemical industry and other industries.

The supercritical CO2 fluid extraction device is equipment used for supercritical fluid extraction. The device is mainly composed of a freezing part, a pressurizing part, an extraction part, a separation part and a recovery part. However, depending on the production process and fluid medium, the composition of the device Also different.

The main extraction process of supercritical CO2 fluid consists of extraction and separation. In the extraction equipment, at a specific temperature and pressure, the raw materials are brought into contact with the supercritical fluid. When the dynamic balance of the material components between gas and liquid is reached, the temperature and pressure are adjusted to separate the extraction product from the supercritical fluid to complete the supercritical process. The entire process of extraction.

The supercritical CO2 extraction process can be used to extract materials (solid and liquid) at high pressure and suitable temperature under separator replacement conditions, so that the soluble materials can decompose the target products during the extraction and separation process.

Six Main Characteristics Of Supercritical Co2 Extraction Process

  1. Low critical temperature, suitable for extraction and purification of heat-sensitive compounds.
  2. It can provide an inert environment to avoid product oxidation and affect the effective content of the extract.
  3. Non-toxic, non-flammable, safe to use and no pollution to the environment.
  4. No solvent residue, no nitrates and heavy metal ions.
  5. Carbon dioxide can be recycled and reused.
  6. Pressure and temperature can be designed according to requirements.


Supercritical CO2 fluid can be used to separate and extract specific substances from solid media, and can also be used to separate and purify specific components in liquid media. The practical application of supercritical CO2 fluid extraction in production is achieved through safe and reliable extraction devices.