The invention provides a continuous chromatographic separation and purification system for separating sugar in inulin. A plurality of separation units which are connected together in series are driven by a turntable to rotate, and when the turntable rotates a circle, under the action of cation exchange resin filled in the separation units, fructo-oligosaccharide flows out of an elution area, polyfructose flows out of a separation area, and recycled water flows out of a concentration area. In such a manner, an inulin solution is separated and purified, so that links of exchange, washing, recycling, leaching and the like in an original fixed bed are integrated in the same system to achieve a better separation and purification effect.
; 秦松
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