Supercritical CO2 extraction method and technology is widely used to extract essential oils from plants, for example, extract industrial hemp or cannabis to CBD oil.
Supercritical fluid (SCF) extraction uses high-pressure, high-density supercritical fluids as solvents to dissolve target components from liquids or solids.Subsequently, operators separate the solvent from the extract through heating, depressurization, or absorption/adsorption, and finally obtain pure components.
Supercritical CO2 extraction is a promising method for extracting compounds from natural sources, offering environmental benefits over traditional extraction methods.
Supercritical CO2 extractor can obtain useful components to the maximum extent, and can selectively extract and separate.
Compared with traditional liquid-liquid extraction, SFE-CO2 has better selectivity, and supercritical fluid extraction technology has broad application prospects in the food, chemical and pharmaceutical industries. With the development of industrialized SFE devices, the reliability, safety, rationality of operation and sufficient convenience of SFE devices will be more effectively guaranteed.
Supercritical fluid technology is a new separation technology in modern chemical separation. Supercritical extraction uses CO2 as solvent, because CO2 fluid in supercritical state has greater density and dielectric constant, greater solubility for substances, and its solubility changes suddenly when temperature and temperature change. Therefore, it is not only selective for the solubility of certain substances, but also easy to separate solvents and extracts.
High-pressure vessel extraction kettle is used to contain the material to be extracted. It is usually made of pressure-resistant materials and can withstand the high pressure of supercritical carbon dioxide.
Supercritical CO2 fluid extraction kettle is one of the keys to the development of supercritical extraction technology. It needs to solve the problems of machinery, heat exchange, fluid transportation and safety assurance caused by the process under high pressure (generally 8-35Mpa or higher). It should be safe, easy to operate, highly versatile, and can be operated continuously on the premise of meeting the production purpose.
The process flow of extracting seabuckthorn oil using supercritical CO2 fluid is: seabuckthorn seeds (peel) → pretreatment → supercritical CO2 fluid extraction → three-stage separation → seabuckthorn oil.
Supercritical CO₂ extraction process is superior to traditional solvent-based methods in terms of efficiency, safety and environmental protection. It can handle a variety of non-polar, high-boiling point substances (such as essential oils, spices, and drug ingredients). It has flexible requirements for temperature and pressure control and is an ideal separation technology in modern industry.
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 Extraction Process in production is achieved through safe and reliable extraction equipment.