Modeling and model-based control of an oxygen delignification unit
Abstract
Improvements in the operation of oxygen delignification reactors could have a potentially significant impact the controllability of downstream processes units and the overall plant economics. A first-principles dynamic model of an oxygen delignification reactor could be used as a tool toward meeting this objective through exploration of the dynamic effects of changing operating conditions, and the development of model-based control schemes. A first-principles, nonlinear dynamic model of an oxygen delignification tower is developed, and used in the design and performance evaluation of a model-based control strategy.