Method for regulating one or more fluid flow circulating in a simulated moving bed chromatography separation loop

摘要

The present invention provides a method of controlling one or more flows of one or more fluids or effluents circulating in a simulated moving bed containing a column forming a closed loop containing one or more devices, such as a recirculating pump introducing pressure anisotropy /RTI Each time the infusion or extraction point passes from one portion of the pump to another, a controller that controls the fluid flow adjustment means for the fluid that has been adjusted near the setpoint causes the autonomy to temporarily halt, Means are arranged in such a position that the means can reach the numerical value of the subzero and preferably reach a predetermined flow rate and start to regulate the flow rate near said predetermined set point, /RTI ;The process of the present invention can be applied to the separation of para-xylene from a mixture of xylenes.