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This paper presents the application of three dimensional exergy analysis curves method to absorption column, which is the second most important separation technique in industries after distillation. A three dimensional graphical correlations of exergy lost to the ratio of liquid and gases molar flow (L m /G m ), number of stages (N) and stage efficiency (η) inside the column is presented...
This paper presents two main contributions. Firstly, a new exergy graphical method is proposed for optimal design of distillation column with minimum exergy lost. The method is applicable to both grass-root and retrofit cases, respectively. The effect of design and operating parameters of a distillation column on the exergy lost is graphically visualized by three dimensional exergy analysis curves...
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