| 학회 | 한국화학공학회 |
| 학술대회 | 2010년 가을 (10/21 ~ 10/22, 대전컨벤션센터) |
| 권호 | 16권 2호, p.1900 |
| 발표분야 | 열역학 |
| 제목 | Measurement and Prediction of Solubility of CO2 in the Ionic Liquids [bmim][PF6], [bmim][BF4], and [bmim][Tf2N] |
| 초록 | Among their many unique properties, the non-volatility of ionic liquids has opened up a possibility to replace conventional solvents with them in CO2 absorption processes. An enormous number of experiments have been carried out to measure the solubility of CO2 in over 200 different ionic liquids. [bmim][PF6], [bmim][BF4], and [bmim][Tf2N] are three well-known examples of ILs studied. In this work, these ILs have been selected to evaluate a method which predicts their capacity to dissolve CO2 at given temperatures. The solubility of CO2 in these ILs was predicted based on their structures using a quantum mechanical method, namely the COSMO-RS approach. The Henry’s law constants calculated using the COSMOthermX program for the above ILs were correlated with the energy parameters in group-contribution non-random lattice fluid equation of state (GC-NLF EoS). These correlations were used to predict the solubility of CO2 in each ionic liquid at temperatures 278 K, 288 K, and 298 K. Then the results were compared with experimental solubility data obtained using a closed phase equilibrium cell in water bath. |
| 저자 | 김지은, 강정원 |
| 소속 | 고려대 |
| 키워드 | Ionic Liquid; Solubility |
| 원문파일 | 초록 보기 |
