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1.19 A mixture of ethylbenzene (EB) and the three isomers (ortho, meta, and para) of xylene are widely available in petroleum refîneries. (a) Based on the differences in normal boiling points, verify that the separation between meta-xylene (MX) and para- xylene (PX) by distillation is far more dificult than the separations between EB and PX, and MX and ortho- xylene (OX) (b) Prepare a list of properties for MX and PX similar to Table 1.11. From that list, which property differences might be the best ones to exploit to separate a mixture of these two xylenes. (c) Explain why melt crystallization and adsorption are used commercially to separate MX and PX.

1.19 A mixture of ethylbenzene (EB) and the three isomers (ortho, meta, and para) of xylene are widely available in petroleum refîneries. (a) Based on the differences in normal boiling points, verify that the separation between meta-xylene (MX) and para- xylene (PX) by distillation is far more dificult than the separations between EB and PX, and MX and ortho- xylene (OX) (b) Prepare a list of properties for MX and PX similar to Table 1.11. From that list, which property differences might be the best ones to exploit to separate a mixture of these two xylenes. (c) Explain why melt crystallization and adsorption are used commercially to separate MX and PX.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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1.19 A mixture of ethylbenzene (EB) and the three isomers (ortho, meta, and para) of xylene are widely available in petroleum refîneries. (a) Based on the differences in normal boiling points, verify that the separation between meta-xylene (MX) and para- xylene (PX) by distillation is far more dificult than the separations between EB and PX, and MX and ortho- xylene (OX) (b) Prepare a list of properties for MX and PX similar to Table 1.11. From that list, which property differences might be the best ones to exploit to separate a mixture of these two xylenes. (c) Explain why melt crystallization and adsorption are used commercially to separate MX and PX.
Transcribed Image Text:1.19 A mixture of ethylbenzene (EB) and the three isomers (ortho, meta, and para) of xylene are widely available in petroleum refîneries. (a) Based on the differences in normal boiling points, verify that the separation between meta-xylene (MX) and para- xylene (PX) by distillation is far more dificult than the separations between EB and PX, and MX and ortho- xylene (OX) (b) Prepare a list of properties for MX and PX similar to Table 1.11. From that list, which property differences might be the best ones to exploit to separate a mixture of these two xylenes. (c) Explain why melt crystallization and adsorption are used commercially to separate MX and PX.
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