Prediction of solubility of Chiba seed extracts in supercritical carbon dioxide by equation of state models

摘要

Solubility of Bakuchiol and Psoralen, key components of Chiba seed extracts in super critical carbon dioxide were predicted by employing well known Peng-Robinson and Soave-modified Redlich-Kwong equation of state models. Solubility (in mole fraction) of both Bakuchiol and Psoralen were in the range 10~(-6) - 10~(-4) for the pressure range 220 to 300 bar. Both the models were found to agree with the experimental solubilities of Psoralen very well. Critical properties necessary for the solubility prediction such as Critical temperature, Critical pressure, Critical volume were predicted for the key components of Chiba seeds i.e Bakuchiol and Psoralen following Group contribution methods based on Ambrose, Lyderson, Joback and Kliencewicz-Reid.