Supercritical processing is widespread across industies including natural products, bio- and advanced-materials, textile manufacturing and others. |
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The most well-known example is the extraction of caffeine from coffee beans using supercritical CO2, which has been used commercially for many years at a large scale. Today supercritical fluids are efficiently used and developed by SEPATEK for many applications: |
Food & Nutraceuticals |
Perfumes & Cosmetics |
Pharmaceuticals |
Textiles |
Electronics |
Aerogels, Ceramic and innovative Materials |
Waste treatment & Waste valorisation |
Oil & Gas industries |
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What is a Supercritical Fluid? |
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CO2 is the most commonly used supercritical solvent. Produced in excess by industry at high purity, it is inexpensive, non-toxic, non-flammable and has a near ambient critical temperature (31°C). Critical pressure is reached at 74bar. |
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A fluid is in “supercritical state” when placed at a temperature above its critical temperature and at a pressure above its critical pressure. Small changes in temperature or pressure can result in drastic changes in fluid density, solvent power and other physical properties. |
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Supercritical fluids exhibit excellent transport properties: low viscosity, high heat and many diffusivities. |