화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.28, No.1, 246-251, January, 2011
DOI10.1007/s11814-010-0345-x  Export Citation
Thermodynamic modeling of CO2 solubility in ionic liquid ([C(n)-mim] [Tf2N]; n=2, 4, 6, 8) with using Wong-Sandler mixing rule, Peng-Rabinson equation of state (EOS) and differential evolution (DE) method
Mohammad Yazdizadeh1, Farhad Rahmani1, and Amir Ahmad Forghani1, 2, †
  • 1Chemical Engineering Department, School of Chemical & Petroleum Engineering, Shiraz University, Shiraz, Iran
  • 2Chemical Engineering Department, Faculty of Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
E-mail:
Environmental and safety regulations are creating increasing interest in ionic liquids which have been used as alternative solvents for a wide range of industrial applications. Knowing the phase equilibrium of these materials is very important. In this study, the solubility of CO2 in ionic liquid 1-alkyl-3 methylimidazolium bis (trifluoromethylsulfonyl) imide ([C(n)-mim][Tf2N]; n=2, 4, 6, 8) was probed with the Peng-Robinson (PR) equation of state (EOS) and Wong-Sandler mixing rule and van Laar model for excess Gibbs free energy. The differential evolution (DE) optimization method was applied to optimize the binary interaction parameter and activity coefficients. Moreover, binary interaction parameters and activity coefficients were presented as mathematical correlations that for various materials have depended on temperature. Our results showed that average absolute derivations of our proposed model were less than other existing models, and by using the aforesaid method better prediction could be achieved.
Keywords:Phase Behavior;Carbon Dioxide;1-Alkyl-3-methylimidazolium Bis (trifluoromethylsolfonyl) Imide;Wong-Sandler Mixing Rule;DE Optimization Method
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