شماره ركورد كنفرانس :
5048
عنوان مقاله :
CFD modeling of subcritical water extraction
Author/Authors :
M ،khajenoori Chemical Engineering Department - Semnan University - Semnan, Iran , E ،omidbakhsh Chemical Engineering Department - Semnan University - Semnan, Iran , F ،hormozi Chemical Engineering Department - Semnan University - Semnan, Iran , A ،haghighi Asl Chemical Engineering Department - Semnan University - Semnan, Iran
كليدواژه :
Extraction , CFD model , subcritical , porous media
عنوان كنفرانس :
ششمين كنگره بين المللي مهندسي شيمي
چكيده لاتين :
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 multiora 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.
