?? ?? ?? Supercritical CO2 Technology: From Plant Extraction to Advanced Drying Tech
Tradematt (Henan) Industry Co.,Ltd.
China supplier of aluminum circle，aluminum coil,aluminum sheet.
The supercritical state of CO2 occurs at temperatures and pressures above its critical point (31.1°C and 7.38 MPa), where CO2 exhibits properties of both a liquid and a gas. In this state, CO2 has high solubility, low viscosity, and high diffusivity, making it highly efficient for extracting target compounds.
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?? ?????????????? ?????? ?????????????????? ????????: Extracting essential oils from roses, lavender, and other plants.
?? ?????????????? ??????????????????: Extracting active ingredients from medicinal herbs.
Food Industry:
?? ????????????????????????????:Used for decaffeinating coffee beans.
Antioxidants and Natural Colorants: Extracting natural antioxidants and colorants from plants.
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Supercritical drying is key in producing aerogels, extremely light porous materials with excellent thermal insulation, adsorption, and mechanical properties. Supercritical CO2 replaces solvents in the sol-gel process, preserving gel structure and resulting in high-porosity aerogels.
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1?? ??????-?????? ??????????????:Preparation of the initial gel structure.
2?? ?????????????? ????????????????: Replacing the original solvent (such as ethanol) in the gel with CO2.
3?? ?????????????????????????? ????????????: Placing the gel in a supercritical CO2 environment for drying.