System Approach Modelling Applied to the Eluxyl Process

Abstract

System Approach Modelling Applied to the Eluxyl Process - The Eluxyl process achieves paraxylene separation to other xylenes and ethylbenzene. Eluxyl is a simulated moving bed process that requires a fine tuning to produce paraxylene at a very high level of purity, up to 99.90%. A numerical model has been developed in parallel with the process. Objectives are to help tuning, to help design of additional equipment such as valves and mixing chambers and to test the so-called "what if cases". According to these objectives, the model is planned to be modified many times in order to test different equipment, to evaluate "what if cases" or even to choose among different configurations. To match these requirements the numerical model has been developed under system approach.