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Distillation of a Complex Mixture. Part II: Performance Analysis of a Distillation Column Using Exergy
Department of Chemical Engineering, University of Mostaganem, Mostaganem, Algeria
* Author to whom correspondence should be addressed.
Received: 7 December 2006; Accepted: 13 September 2007 / Published: 25 September 2007
Abstract: To analyze the performance of the separation process, we have introduced thethermodynamic concept of exergy through the exergetic efficiency of the column. Thesimulation results show that the exergetic output is relatively low and that the producedirreversibility fluxes are distributed throughout the whole column in a non-uniform manner.They are particularly significant in the condenser, boiler and tray feed. The influence of thevarious operating parameters (temperature, concentration and irreversibility in both sectionsof the column) is also established. To emphasize the results, the relation in equation 17, ispresented graphically to evaluate the cumulative irreversibilities from the overhead to thebottom. This presentation is equivalent to the Grassmann diagram.
Keywords: High pressure distillation; complex mixture; exergetic efficiency; irreversibility; pinch temperature.
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MDPI and ACS Style
Mustapha, D.; Sabria, T.; Fatima, O. Distillation of a Complex Mixture. Part II: Performance Analysis of a Distillation Column Using Exergy. Entropy 2007, 9, 137-151.
Mustapha D, Sabria T, Fatima O. Distillation of a Complex Mixture. Part II: Performance Analysis of a Distillation Column Using Exergy. Entropy. 2007; 9(3):137-151.
Mustapha, Douani; Sabria, Terkhi; Fatima, Ouadjenia. 2007. "Distillation of a Complex Mixture. Part II: Performance Analysis of a Distillation Column Using Exergy." Entropy 9, no. 3: 137-151.