Transport Phenomena - Delft University of Technology

Sorted by YearSorted by First Author

Binary and Ternary Lle Data of the System (Ethylbenzene Plus Styrene+1-Ethyl-3-Methylimidazolium Thiocyanate) and Binary Vle Data of the System (Styrene+1-Ethyl-3-Methylimidazolium Thiocyanate)

Binary and Ternary Lle Data of the System (Ethylbenzene Plus Styrene+1-Ethyl-3-Methylimidazolium Thiocyanate) and Binary Vle Data of the System (Styrene+1-Ethyl-3-Methylimidazolium Thiocyanate), Mark T. G. Jongmans, Boelo Schuur, and Andre B. de Haan. Journal of Chemical Thermodynamics 2012, 47 , 234–240.

Download

[DOI] 

Abstract

The distillation of close boiling mixtures may be improved by adding a proper affinity solvent, and thereby creating an extractive distillation process. An example of a close boiling mixture that may be separated by extractive distillation is the mixture ethylbenzene/styrene. The ionic liquid 1-ethyl-3methylimidazolium thiocyanate ([EMIM][SCN]) is a promising solvent to separate ethylbenzene and styrene by extractive distillation. In this study, (vapour + liquid) equilibrium data have been measured for the binary system (styrene + [EMIM][SCN]) over the pressure range of (3 to 20) kPa and binary and ternary (liquid + liquid) equilibrium data of the system (ethylbenzene + styrene + [EMIM][SCN]) at temperatures (313.2, 333.2 and 353.2) K. Due to the low solubility of ethylbenzene in [EMIM][SCN], it was not possible to measure accurately VLE data of the binary system (ethylbenzene + [EMIM][SCN]) and of the ternary system (ethylbenzene + styrene + [EMIM][SCN]) using the ebulliometer. Because previous work showed that the LLE selectivity is a good measure for the selectivity in VLE, we determined the selectivity with LLE. The selectivity of [EMIM][SCN] to styrene in LLE measurements ranges from 2.1 at high styrene raffinate purity to 2.6 at high ethylbenzene raffinate purity. The NRTL model can properly describe the experimental results. The rRMSD in temperature, pressure and mole fraction for the binary VLE data are respectively (0.1, 0.12 and 0.13)%. The rRMSD is only 0.7% in mole fraction for the LLE data. (C) 2011 Elsevier Ltd. All rights reserved.

BibTeX

@article{ ISI:000299039100034,
Author = {Jongmans, Mark T. G. and Schuur, Boelo and de Haan, Andre B.},
Title = {Binary and Ternary Lle Data of the System (Ethylbenzene Plus Styrene+1-Ethyl-3-Methylimidazolium Thiocyanate) and Binary Vle Data of the System (Styrene+1-Ethyl-3-Methylimidazolium Thiocyanate)},
Journal = {Journal of Chemical Thermodynamics},
Year = {2012},
Volume = {47},
Pages = {234-240},
Month = {},
Abstract = {The distillation of close boiling mixtures may be improved by adding a proper affinity solvent, and thereby creating an extractive distillation process. An example of a close boiling mixture that may be separated by extractive distillation is the mixture ethylbenzene/styrene. The ionic liquid 1-ethyl-3methylimidazolium thiocyanate ({[}EMIM]{[}SCN]) is a promising solvent to separate ethylbenzene and styrene by extractive distillation. In this study, (vapour + liquid) equilibrium data have been measured for the binary system (styrene + {[}EMIM]{[}SCN]) over the pressure range of (3 to 20) kPa and binary and ternary (liquid + liquid) equilibrium data of the system (ethylbenzene + styrene + {[}EMIM]{[}SCN]) at temperatures (313.2, 333.2 and 353.2) K. Due to the low solubility of ethylbenzene in {[}EMIM]{[}SCN], it was not possible to measure accurately VLE data of the binary system (ethylbenzene + {[}EMIM]{[}SCN]) and of the ternary system (ethylbenzene + styrene + {[}EMIM]{[}SCN]) using the ebulliometer. Because previous work showed that the LLE selectivity is a good measure for the selectivity in VLE, we determined the selectivity with LLE. The selectivity of {[}EMIM]{[}SCN] to styrene in LLE measurements ranges from 2.1 at high styrene raffinate purity to 2.6 at high ethylbenzene raffinate purity. The NRTL model can properly describe the experimental results. The rRMSD in temperature, pressure and mole fraction for the binary VLE data are respectively (0.1, 0.12 and 0.13)\%. The rRMSD is only 0.7\% in mole fraction for the LLE data. (C) 2011 Elsevier Ltd. All rights reserved.},
DOI = {10.1016/j.jct.2011.10.021},
ISSN = {0021-9614},
Unique-ID = {ISI:000299039100034},
}

Generated by bib2html.pl (written by Patrick Riley ) on Fri Jul 28, 2017 13:53:03


Last modified: July 28 2017. © Delft University of Technology - TP group 2012