Supercritical CO2 extraction machine/oil extraction machine, Herbal extraction machine
Technique of super-critical extraction, a advanced technical coming forth presently, is a new subject in the field of the modern chemical separating industry, which is applied widely in the field of extracting substance from plant.
There is a immediate relationship between dissolvable capability of Super-critical medium and it-selves density. Both pressure and temperature affect the dissolvable capability of Super-critical medium. Under super critical condition, put Super-critical medium together with material needed be separated to extract substance according to polarity magnitude, boiling point, and molecular weight. For substance extracted achieved at some pressures is not simplex, the condition should be controlled to achieve excellent quality of mixed composition, then, reduce pressure, increase temperature, to change the phase of Super-critical medium from liquid to gas. By this way, substance extracted is separated and purified. CO2 Super-critical extraction includes extraction and separation.
1. Continuous process of extraction
Instead of adopting the method of extracting discontinuously, working in a continuous way, this instrument is more effective then before(1times higher).
2. Automatically assemble and un-assemble material
The process of loading and unloading material from the bottom of the instrument to extraction kettle is controlled by computer. Instead, before the apparatus was improved, workers had to climb up the top of the kettle to tear down the bolt in the kettle, then carry the store kettle and place it in the vesselthis is really a clumsy and not safe way.
3. Accurate extraction pressure and separation pressure
CO2 injection pump controlled by computer traces the extraction pressure automatically in a way of frequency modulation, and the separation pressure is controlled automatically by pressure adjustment , which make the precision of extraction pressure and separation pressure be controlled in a steady condition required. In this way, high purified substance extracted could be yielded.
4. High efficiency of usage of CO2
The loop designed in the instrument utilizes CO2circularly, which reduces the release of CO2 greatly. (without the circular loop, the measure of pressure balance is adopted after test finished, which lead to a mount of CO2 lost .The pressure ranges from 6 MPa to 8MPa when gas is released, and with a big noise, it will last for a long time in this process)
A new method of fluid spreading around adopted makes the fluid (CO2) contact with solute evenly, which speeds solution, reduces time of extraction greatly, and increases production ultimately.
5. Friendly design
The instrument is controlled by computer which adopts man-machine conversation and voice indication. With multiple pressure protection, temperature protection and safety light screen protection, the instrument could prevent operators from hurt effectively. Operators will operate the instrument in a friendly condition.