23rd European Symposium on Computer Aided Process Engineering

Operation of energy efficient divided wall column

Ambari Khanam^a, M. Shamsuzzoha^b∗ and Sigurd Skogestad^a,    ^aDepartment of Chemical Engineering, Norwegian University of Science and Technology, N-7491 Trondheim, Norway, [e-mail], ^bDepartment of Chemical Engineering, King Fahd University of Petroleum and Minerals, Daharan, Saudi Arabia, [e-mail]

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 R_v 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 ...