Three-port in Three-zone simulated moving bed (TT-SMB) operation for improving the separation performance

摘要

The present invention relates to a method for separating a mixture using a similar mobile bed adsorptive separation (SMB) process wherein the composition of the three chromatographic zones and the three ports (desorbent inlet port, separation inlet mixture inlet port and product outlet port) (SMB) apparatus, the switching section is divided into a first half portion and a second half portion. By varying the position of the port, only the product (extract or raffinate The present invention also provides a separation method for producing a separation membrane. Accordingly, the conventional four-zone SMB process and the conventional four-zone SMB process, while using a smaller amount of the adsorbent in the conventional four-zone SMB process, Quot; three-zone SMB process " can provide a method for separating a mixture that can yield products of higher purity.