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What Is The Supercritical CO₂ Extraction Technology?

Views: 0     Author: Site Editor     Publish Time: 2024-12-31      Origin: Site

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Definition of Supercritical CO₂ Extraction Technology

Supercritical CO₂ extraction technology is a modern separation technique. It utilizes carbon dioxide in a supercritical state, which occurs when the temperature and pressure exceed its critical values (31.1°C and 7.38 MPa respectively). In this state, CO₂ has unique properties similar to both gases and liquids.

Extraction Principle

The extraction principle is based on the fact that the solubility of substances in supercritical CO₂ can be altered by changing the pressure and temperature. By adjusting these parameters, target compounds can be selectively dissolved and then separated.

Technological Advantages

This technology offers several advantages. It is highly selective, enabling precise extraction of specific components. It is also environmentally friendly as CO₂ is non-toxic and can be recycled. Additionally, it can operate at relatively low temperatures, preserving the integrity of heat-sensitive substances.

Application Areas

In terms of application, it is widely used in various fields. In the food industry, it extracts flavors and essential oils. In pharmaceuticals, it isolates active ingredients from plants. In the cosmetics industry, it obtains natural extracts for skincare products. Overall, supercritical CO₂ extraction technology has become an important tool in modern chemical and industrial processes.


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