The Carbon dioxide gas from the cylinder is first liquefied & then pressurizedabove the critical pressure of CO2 (73.8 bar) to the required pressurenecessary for extraction. This high pressure liquid CO2 is then heated abovethe critical temperature of CO2 (31 °C) to the required temperature. CO2which is now in supercritical phase (SCCO2) enters the extractor where theraw material is fed in powder form & the extraction is achieved on the basisof solubility. The compounds dissolved in SCCO2 finally come to theseparator at atmospheric pressure & get precipitated. CO2 leaving theseparator is then measured by passing it through a CO gas flow meter.
The raw material in powder form is fed to the extractor. The liquid carbondioxide from the CO2 tank is precooled by passing it through the precooler.This precooled liquid carbon dioxide is then pressurized by means of apositive displacement plunger pump to a pressure above the criticalpressure of CO2 (i.e. 73.8 bar). High pressure liquid CO2 is then heated abovethe critical temperature of CO2 (i.e 31 °C) by passing it through preheater. CO2which is now in the supercritical state enters the extractor in which the rawmaterial is loaded. The SCCO2 dissolves substances on the basis of solubility,depending on operating conditions. The SCCO2 with soluble extracts enters the separators where the pressure & temperature are reduced sequentiallyso that solubility decreases & extract precipitates in the separators. Finallythe clean CO2 without any traces is recycled back to the CO2 tank viacondenser.
|Volume (ltr)||Design Pressure (bar)||Design Temperature (°C)|
|0.1 to 2||350||500, 700||100||200|
|5 to 25||500|
|50 to 100||NA||150|
|200 to 1000|
|Model No.||Working Volume (ltr)||Feed Capacity* (kg/day)|
6, Parmar Industrial Estate,Kale Marg,
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Mumbai – 400 070. India.
Landmark: Opposite Bail Bazaar Police Station
Tel: +91-22-6225 5000
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