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4721261 
Journal Article 
Purification process design in the production of styrene monomer 
Diaz, I; Langston, P; Ovejero, G; Dolores Romero, M; Diez, E 
2010 
Yes 
Chemical Engineering and Processing: Process Intensification
ISSN: 0255-2701 
49 
4 
367-375 
WOS:000278413900007 
An economic study of two alternatives for styrene monomer purification based on equilibrium staged processes is presented For this purpose, the solubility of t-butylcatechol (TBC) in styrene and the styrene-water liquid-liquid equilibrium were experimentally determined. In terms of economics, a combined process extraction-distillation shows worse results than a conventional distillation process, for the styrene purification, but this process could be suitable in a high energy cost scenario Measured activity coefficients NRTL model and UNIFAC predictive model were used for the process optimization (C) 2010 Elsevier B.V All rights reserved 
Styrene; Distillation; Extraction; Purification