CFD modeling of subcritical water extraction

Subcritical water extraction (SWE) is a technique based on the use of water as an extractant. CFD modeling of extraction was considered in this work. As the temperature of liquid water is raised under pressure, between 100 and 374 ºC, the polarity decreases markedly and it can be used as an extraction solvent for a wide range of analytes. The model was verified successfully using the subcritical water extraction data for Zataria multiora Boiss. leaves at 20 bar and 150oC. The effect of temperature in CFD modeling was studied. The results indicate that increasing operating temperature from150 to 200°C increases the extraction concentration.

کلیدواژه ها:

Extraction ، CFD model ، subcritical ، porous media