期刊
FLUID PHASE EQUILIBRIA
卷 419, 期 -, 页码 50-56出版社
ELSEVIER
DOI: 10.1016/j.fluid.2016.03.003
关键词
Liquid-liquid equilibria; Coal tar; 1-Heptane; Phenols; Ethylene glycol
资金
- Qingdao postdoctoral fund [T1504117]
- Project of Natural Science Research of Higher Education Institutions of Jiangsu Province [15KJD530001]
The separation of low temperature coal tar can be carried out using extraction technology, especially for the collection of phenols. Liquid liquid equilibria data for the ternary mixture of 1-Heptane + phenols + ethylene glycol were obtained at 323.15 K and 343.15 K under atmospheric pressure, where phenols refer to phenol, o-cresol, m-cresol and p-cresol. The tie lines were displayed in ternary phase diagrams. The distribution coefficient and selectivity were calculated according to the measured tie-line data. The calculation results revealed that the selectivity was large enough for the extraction application. The root-mean-square deviation (RMSD) value of the NRTL model was a little lower than that of UNIQUAC, demonstrating NRTL can better fit the experimental data. (C) 2016 Elsevier B.V. All rights reserved.
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