Maryam Ghadrdan

Economically Optimal Control of Kaibel Distillation Column: Fixed boilup rate

Abstract In this study, a control structure is designed for a 4-product dividing wall (Kaibel) distillation column, based on the plant-wide control procedure by Skogestad [2000]. Unlike the common approach, vapour split is considered as a degree of freedom. The exact local method is used to find the best control variables as single measurements or combination of measurements.

A Shortcut Design for Kaibel Columns Based on Minimum Energy Diagrams

Abstract In this paper, a shortcut procedure is proposed to design a 4-product dividing-wall column. It is based on the information derived from V min diagram. This has the advantage of having more meaningful guesses for energy requirements and impurity flows in the column. An example is used for illustration.

Dynamic compensation of static estimators from Loss method

Abstract In this paper, we study different possibilities to overcome the inverse response problem which is caused by combining different measurements with fast and slow dynamics to form an estimator. Our goal is to obtain a response with “No inherent limitation”.

Estimation of Primary Variables from Combination of Secondary Measurements: Comparison of Alternative Methods for Monitoring and Control

In this work, we propose a method to estimate the primary variables based on a combination of measurements. Our method is a reformulation of the Loss method. We will compare our method with the other well-known estimators.