Solubility of CO2 in Acetone, 1-Butyl-3-methylimidazolium Tetrafluoroborate, and Their Mixtures
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- 作者：Zhigang Lei ; Xiaoxi Qi ; Jiqin Zhu ; Qunsheng Li ; Biaohua Chen
- 刊名：Journal of Chemical & Engineering Data
- 出版年：2012
- 出版时间：December 13, 2012
- 年：2012
- 卷：57
- 期：12
- 页码：3458-3466
- 全文大小：303K
- 年卷期：v.57,no.12(December 13, 2012)
- ISSN：1520-5134
文摘
The phase behavior of binary and ternary mixtures consisting of carbon dioxide (CO2) (1), acetone (2), and 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM]+[BF4]鈭?/sup>) (3) was studied experimentally. A high-pressure view-cell technique was used to measure the solubility data in the solvent mixtures of acetone and [BMIM]+[BF4]鈭?/sup> at various mole contents at temperatures of (298.2, 313.2 and 323.2) K and pressures up to 6.0 MPa. The experimental solubility data were correlated using the Henry鈥檚 law and Peng鈥揜obinson equation of state (PR EOS), and the magnitude of Henry鈥檚 constants is in the order of HX3=0.0 < HX3=0.060 < HX3=0.204 < HX3=0.507 < HX3=1.0 at a given temperature. Moreover, at a fixed mole ratio of organic solvent to ionic liquid (IL), the solubility of CO2 in the mixture of acetone and [BMIM]+[BF4]鈭?/sup> is the highest when compared with other previously reported organic solvent + IL separating agents. The mixtures of acetone and [BMIM]+[BF4]鈭?/sup> may be used as a potential solvent for industrial application for capturing CO2 efficiently and effectively.