Abstract
Pressure swing adsorption (PSA) plants consist of several fixed-bed adsorbers and are operated as cyclic multi-step processes. PSA processes are used for the separation and purification of gas mixtures. Based on a rigorous distributed parameter model of the considered 2-bed PSA plant, a process control scheme is derived which is composed of a nonlinear feedforward control and a linear feedback control. For the design of the feedforward control, a numerical approach for the inversion of the rigorous plant model is presented. The designed trajectory control scheme is evaluated by use of the PSA plant simulation model
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