METHOD AND DEVICE FOR FRACTIONATING A MIXTURE IN A SIMULATED FLUIDIZED BED IN THE PRESENCE OF A COMPRESSED GAS, A SUPERCRITICAL FLUID OR A SUBCRITICAL LIQUID

摘要

we describe a device and a method for fractionating mixturescomponentsby chromatography or by adsorption in a simulated moving bed withthree, fourfive areas. it is by a compressor or a pump to a compressed gasaseluent (ie, ir), in which the pressure is lower than the critical pressure of thethe gas. at any pointat least one zone and one way at any point in at least twoareas, fromfrom the point of injection of the eluent (ir), has a coefficient of gascompressibilitysignificantly different from 1. you can also inject a liquid eluentsupercriticalsub-critical or a liquid. the pressure of each zone can be modulated.application tothe separation of petroleum fractions.