| 학회 |
한국화학공학회 |
| 학술대회 |
2005년 봄 (04/22 ~ 04/23, 여수대학교) |
| 권호 |
11권 1호, p.673 |
| 발표분야 |
이온성액체(Ionic Liquid)의 열물성과 이용기술 |
| 제목 |
Modeling of phase equilibria with imidazolium based ionic liquids and CO2 by group contribution non-random lattice fluid equation of state |
| 초록 |
Ionic liquids are receiving growing attentions as alternative solvents. Appreciations of thermodynamic properties and phase equilibria involving ionic liquids are needed for applications of operations and designs for chemical processes. In the recent years, experimental phase equilibria data containing ionic liquids have been reported. Sometimes accuracies in equilibrium data were questioned due to their impurities and degradation. These equilibrium data have been mainly modeled by excess Gibbs functions. Equation of state approaches are more convenient to model the phase equilibria of ionic liquids with supercritical gases such as carbon dioxide. In the present study the phase equilibria of imidazolium based ionic liquids and carbon dioxide were modeled by the group contribution non-random lattice fluid equation of state. Group segment numbers and interaction energy parameters between groups were fitted to experimental solubility data and densities of ionic liquids. The agreements between experimental data and calculated solubilities were found generally good. In addition, discrepancies between experimental data in literature were discussed. |
| 저자 |
김용수, 이철수
|
| 소속 |
고려대 |
| 키워드 |
ionic liquid; carbon dioxide; solubility; equation of state
|
| E-Mail |
|
| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
