Cascaded Columns of Total Reflux Batch Distillation with Periodic Liquid Exchange

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Abstract:

A new type of operation mode of cascaded columns of total reflux batch distillation with periodic liquid exchange was proposed. The feasibility of the new operation, which is suitable for separations of mixtures of close boiling point, thermo-sensitive material and isotopes, was proved by the experiments in which two columns and three columns in periodic liquid exchange were used with ethanol-isopropanol, ethylbenzene- paraxylene as the experimental mixtures. The results indicate that the new operation mode can generate summation effect of theoretical plates by periodic liquid exchange between columns, while the total pressure drop is the same as that of a single column.

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Advanced Materials Research (Volumes 690-693)

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1495-1499

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May 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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