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23rd European Symposium on Computer Aided Process Engineering by Ilkka Turunen, Andrzej Kraslawski

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Operation of energy efficient divided wall column

Ambari Khanama, M. Shamsuzzohab∗ and Sigurd Skogestada,    aDepartment of Chemical Engineering, Norwegian University of Science and Technology, N-7491 Trondheim, Norway, skoge@ntnu.no, bDepartment of Chemical Engineering, King Fahd University of Petroleum and Minerals, Daharan, Saudi Arabia, mshams@kfupm.edu.sa

Abstract

Based upon the nominal design of a divided wall column, one obtains the minimum energy usage to achieve the desired separation. During operation, when the column is actually run, the vapor split ratio Rv is found to be non-optimal. For this and other reasons, it is likely that available energy is actually lower than the energy required for the separation of three products. The ...

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