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Separation of tartronic and glyceric acids by simulated moving bed chromatography.

Authors
  • Coelho, Lucas C D1
  • Filho, Nelson M L2
  • Faria, Rui P V3
  • Ferreira, Alexandre F P4
  • Ribeiro, Ana M4
  • Rodrigues, Alírio E4
  • 1 Laboratory of Catalytic Process, Chemical Engineering Department, Federal University of Pernambuco, 50670-901 Recife, Brazil; Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering of University of Porto, 4200-465 Porto, Portugal. , (Brazil)
  • 2 Laboratory of Catalytic Process, Chemical Engineering Department, Federal University of Pernambuco, 50670-901 Recife, Brazil. , (Brazil)
  • 3 Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering of University of Porto, 4200-465 Porto, Portugal. Electronic address: [email protected] , (Portugal)
  • 4 Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering of University of Porto, 4200-465 Porto, Portugal. , (Portugal)
Type
Published Article
Journal
Journal of chromatography. A
Publication Date
Aug 17, 2018
Volume
1563
Pages
62–70
Identifiers
DOI: 10.1016/j.chroma.2018.05.052
PMID: 29908700
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

The SMB unit developed by the Laboratory of Separation and Reaction Engineering (FlexSMB-LSRE®) was used to perform tartronic acid (TTA) and glyceric acid (GCA) separation and to validate the mathematical model in order to determine the optimum operating parameters of an industrial unit. The purity of the raffinate and extract streams in the experiments performed were 80% and 100%, respectively. The TTA and GCA productivities were 79 and 115 kg per liter of adsorbent per day, respectively and only 0.50 cubic meters of desorbent were required per kilogram of products. Under the optimum operating conditions, which were determined through an extensive simulation study based on the mathematical model developed to predict the performance of a real SMB unit, it was possible to achieve a productivity of 86 kg of TTA and 176 kg of GCA per cubic meter of adsorbent per day (considering the typical commercial purity value of 97% for both compounds) with an eluent consumption of 0.30 cubic meters per kilogram of products. Copyright © 2018 Elsevier B.V. All rights reserved.

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