APC - Eluxyl

The Eluxyl advanced control package combines Axens Horizon' latest generation multivariable controller MVAC with an on-line reaction model; it is designed to maximize the benefits from the Eluxyl process, in an environment with complex, slow and non-linear multivariable interactions.

As process licensor and advanced control technology supplier, Axens Horizon combines all the necessary expertise for successful Eluxyl APC projects.

A 6 step patented control strategy

input/output transformations for interaction decoupling & linearization
optimization and control of adsorption profile
- to prevent extract pollution by EB
- to control Paraxylene losses in the raffinate
maximization of Paraxylene yield for a given extract purity
maximization of extract / raffinate ratio
minimization of desorbent / feed ratio
feed forward compensation for changes in feed composition

apc eluxyl

The Eluxyl control package uses Axens Horizon' MVAC on-line optimization capability to push the unit as near as possible to the optimal operation of the adsorption unit.