Patent ID: 6325940
Filing Date: 2001-12-04
Classification: B01D

Abstract:
A simulated moving bed chromatographic separation system for separating from a feedstock the constituents thereof, which comprises a fluid circulating passage having the fluid forcibly circulated therethrough and having at least four packed beds filled with separating fillers and connected in series and endlessly to each other; a desorbing liquid introducing port for introducing the desorbing liquid into the fluid circulating passage; an extract draw-out port for drawing out the extract containing a larger amount of a constituent strongly adsorbed on said fillers, of constituents contained in the feedstock, from said fluid circulating passage; a feedstock introducing port for introducing the feedstock into said fluid circulating passage; and a raffinate draw-out port for drawing out the raffinate containing a larger amount of a constituent weakly adsorbed on the fillers, of said constituents, wherein said desorbing liquid introducing port, extract draw-out port, feedstock introducing port and raffinate draw-out port are arranged in this order in the direction of fluid flow on said fluid circulating passage, and designed so that the positions of these ports are successively but intermittently shifted along said fluid circulating passage without changing said order, said system also comprising packed bed performance evaluating means for examining the condition of each of said constituents separated in each of said packed beds, by injecting a standard solution known for the kinds of constituents contained and their concentrations and said desorbing liquid into each of said packed beds.