It uses a supercritical CO2 fluid, that is, a fluid in a thermodynamic state at a temperature higher than the critical temperature and a pressure higher than the critical pressure, as an extractant. Supercritical CO2 fluid extraction is a new type of extraction and separation technology Supercritical fluid extraction Ergosterol CO2 Extraction Processes It can adjust the pressure, Temperature and attractive entraining agent can adjust the dissolving ability of the transboundary fluid, and can gradually extract the components into the desired product through the gradually density and temperature, and pressure.It operates at lower profitability, and is particularly suitable for the separation of natural substances.The extractant is a gas at normal pressure and room temperature, and it is easy to separate from the raffinate phase and the extraction group after the extraction.Among them, CO2 is mostly used (critical temperature is close to room temperature, and it is colorless, non-toxic, odorless, not easy), Chemically inert, cheap, easy to make high purity gas). There are many substances that can be used as SF, such as carbon dioxide, nitrous oxide, sulfur hexafluoride, ethane, heptane, ammonia, etc. The process of dissolving and separating substances by the supercritical CO2 fluid is called supercritical fluid extraction. Supercritical fluid extraction is a process that uses the strong dissolving ability characteristics of supercritical fluids to extract various active ingredients from animals and plants, and then release them through decompression. Extract specific components from liquid or solid to achieve the purpose of separation. It uses a supercritical fluid, that is, a fluid in a thermodynamic state at a temperature higher than the critical temperature and a pressure higher than the critical pressure, as an extractant. Supercritical fluid extraction is a new type of extraction and separation technology CBD Oil CO2 Extraction Method Supercritical fluid extraction These characteristics make supercritical fluids a good extractant. Because the dissolution process involves intermolecular interactions and diffusion, SF has a strong ability to dissolve many substances. The density of SF is similar to that of liquid, and the viscosity is similar to that of gas, but the diffusion coefficient is about 100 times larger than that of liquid. Supercritical fluids have the dual characteristics of gas and liquid.

Supercritical fluid (SF) is a fluid between gas and liquid that is above the critical temperature (Tc) and critical pressure (Pc).

Fluid extractor