Separation of phosphatidylcholine from soybean phospholipids by simulated moving bed |
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Authors: | Yu-bin Lü Yi-wen Yang Ping-dong Wu |
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Affiliation: | (1) National Laboratory of Secondary Resources Chemical Engineering, Zhejiang University, Hangzhou, 310027, China |
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Abstract: | A simulated moving bed (SMB), equipped with eight silica-gel columns, was used to separate phosphatidylcholine (PC) from soybean phospholipids. The effects of flow rate in Sections 2 (Q2) and 3 (Q3), switching time, feed flow rate and feed concentration on the operating performance parameters: purity, recovery, productivity and desorbent consumption were studied. Operating conditions leading to more than 90% purity in both outlet streams have been identified, together with those achieving optimal performance. Regions leading to complete separation are observed and explained theoretically. As the mass-transfer effect was not considered, the triangle theory only gives initial guesses for the optimal operating conditions. |
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Keywords: | Simulated moving bed (SMB) Separation Soybean phosphatidylcholine (PC) |
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