Two-column simulated moving-bed process for binary separation |
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Authors: | Rodrigues Rui C R Canhoto Tiago J S B Araújo João M M Mota José P B |
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Affiliation: | Requimte/CQFB, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal. |
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Abstract: | A two-column simulated moving-bed system has been developed for binary separation. The system combines a flexible node design, robust pump configuration, and cyclic flow-rate modulation to exploit the benefits of simulated counter-current operation. The feasibility of the proposed two-column system is demonstrated on the linear separation of two nucleosides by reversed phase. Emphasis is given to the potentialities of the process compared to single-column batch chromatography with recycling for the same amount of stationary phase. The performance of the proposed two-column process is verified with laboratory-scale experiments and detailed simulations for different difficulties in separation and desorbent-to-feed ratios. |
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