The present invention relates to a device similar to a moving bed adsorption separation method and, more particularly, the fluid mixture inlet port, raffinate exit ports, the desorbent inlet port, an extract discharge port, at least three or more ports to connect the two adjacent sections and chromatographic SMB adsorption separation unit comprising a valve for controlling the movement of the respective port; And the beginning of the switching time with high concentration of about adsorbate, the second half, and characterized in that the concentration of the adsorbate comprises a pre-processing unit river for supplying a fluid mixture to the adsorption separation unit by adjusting the concentration of the fluid mixture so as to increase, the present invention By analogy moving bed adsorption separation apparatus and method according to the pre-treatment unit is removed from the source of impurities in the feed fluid mixture (feed) for the switching of the gradient of the incoming time (switching time) injecting a raw material in the SMB process, it is possible to maximize process efficiency, including all the purity of the final product.
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