화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.97, 485-491, May, 2021
DOI10.1016/j.jiec.2021.03.002  Export Citation
Experimental measurement and correlation of phase equilibria of palmitic, stearic, oleic, linoleic, and linolenic acids in supercritical carbon dioxide
Jason Yi Juang Yeo, Felycia Edi Soetaredjo1, Suryadi Ismadji1, †, and Jaka Sunarso†
  • Research Centre for Sustainable Technologies, Faculty of Engineering, Computing and Science, Swinburne University of Technology, Jalan Simpang Tiga, Kuching, Sarawak 93350, Malaysia
  • 1Department of Chemical Engineering, Widya Mandala Surabaya Catholic University, Kalijudan 37, Surabaya 60114, Indonesia
E-mail:,
Supercritical carbon dioxide (SC-CO2) represents a promising solvent in the synthesis of biodiesel given its enhanced mass transfer properties as well as its high affinity to the fatty acids. In this work, the phase equilibria data of 5 major fatty acids: palmitic, stearic, oleic, linoleic, and linolenic acid in SC-CO2 were studied experimentally at temperature between 343.15 to 373.15 K and pressures between 8 to 24 MPa. The experimental data were correlated using Peng.Robinson Equation of State with van der Waals (PR-vdW), Panagiotopoulos-Reid (PR-PR), and Stryjek-Vera (PR-SV) combining rules. The fitting result by PR-PR was shown to be more accurate and consistent than those of PR-vdW and PR-SV. From these data, we found that oleic acid has the greatest solubility in SC-CO2, followed by linoleic acid, palmitic acid, stearic acid, and lastly, linolenic acid.
Keywords:Supercritical fluid extraction;Carbon dioxide;Fatty acid;Phase equilibria;Binary interaction parameter
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