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Title: Designing new mass-separating agents based on piperazine-containing good's buffers for separation of propanols and water azeotropic mixtures using COSMO-RS method
Author: Taha, Mohamed
Keywords: COSMO-RS
Good’s buffers
Isobaric vapor-liquid equilibrium
Issue Date: 2016
Publisher: Elsevier
Abstract: The isobaric vapor liquid equilibria of the binary 1 propanol þ water, 2 propanol þ water, and 2 methyl 2 propanol (tert butanol) þ water systems were predicted using the conductor like screening model for realistic solvation (COSMO RS) method. The phase behavior of the 1 propanol/2 propanol/tert butanol þ water þ piperazine based Good’s buffer systems were predicted. The effect of piperazine containing Good’s buffers, 2 [4 (2 hydroxyethyl)piperazin 1 yl]alkanesulfonic acid, as mass separating agents on the separation of proponals from water were discussed. The influence of alkyl chain length between the zwitterion end groups, R ¼ methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, and decyl was evaluated. Further, the effect of 4 (2 hydroxyethyl)piperazine 1 (2 hydroxypropane sul fonic acid) was also evaluated. Piperazine based Good’s buffers are expected to be effective mass separating agents to have practical application in the separation of propanol from water.
Peer review: yes
DOI: 10.1016/j.fluid.2016.05.011
ISSN: 0378-3812
Appears in Collections:CICECO - Artigos

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