화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.16, No.5, 859-865, September, 2010
DOI10.1016/j.jiec.2010.03.009  Export Citation
Phase equilibria of palm oil, palm kernel oil, and oleic acid + supercritical carbon dioxide and modeling using Peng-Robinson EOS
Seung-Ah Hong1, 2, Jae-Duck Kim1, †, Jaehoon Kim1, †, Jeong Won Kang2, †, and Ik-Joong Kang3
  • 1Supercritical Fluid Research Laboratory, Energy & Environment Research Division, Korea Institute of Science and Technology (KIST), 39-1 Hawolgok Dong, Seongbuk-Ku,Seoul 163-791, Republic of Korea
  • 2Department of Chemical & Biological Engineering, Korea University, 5-1 Anam Dong, Seongbuk-Ku, Seoul 136-701, Republic of Korea
  • 3Department of Chemical & Bioengineering, Kyungwon University, Seongnam, Kyongki-do 461-701, Republic of Korea
E-mail:, ,
Vapor.liquid equilibria of the binary supercritical carbon dioxide (scCO2) + oleic acid, scCO2 + palm oil, and scCO2 + palm kernel oil were measured at a wide range of temperatures from 333.2 to 373.2 K and pressures from 8.5 to 35 MPa in a circulation-type phase equilibrium apparatus. The samples from liquid and vapor phases were analyzed using UV-vis spectrometer and a liquid hold-up equipment. The phase equilibrium data were correlated with Peng-Robinson Equation of State (PR-EOS) using Wong-Sandler mixing rule and optimum values of binary interaction parameters were determined. The relative deviation between experimental data and predicted data was in the range of 6.9-8.7%, suggesting that the PR-EOS with Wong-Sandler mixing rule is capable of predicting the vapor-liquid equilibria of oleic acid + scCO2, palm oil + scCO2, and palm kernel oil + scCO2.
Keywords:Oleic acid;Palm oil;Palm kernel oil;Equilibrium;Supercritical;Peng.Robinson Equation of State (PR-EOS)
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