Research Article
Design of Batch Distillation Columns Using Short-Cut Method at Constant Reflux
Table 4
Four-component separation: benzene (i), toluene (ii), ethylbenzene (iii), and o-xylene (iv) at constant reflux.
| Case | | Feed = (kmol) | harvest (h) | total (h) | (kmol) | (kmol) | P4-CAP kg/h | CTA USD |
| | | | | | | | | | A | 2 | 400 | 2.1 | 3 | 300 | 70.00 | 1883 | 493,757 | B | 5 | 400 | 5.3 | 6 | 300 | 88.33 | 1148 | 874,550 | C | 10 | 400 | 10.3 | 11 | 300 | 93.63 | 677 | 1,508,046 | | | | | | | | | | A | 2 | 400 | 2.1 | 3 | 300 | 70.00 | 1883 | 503,206 | B | 5 | 400 | 5.3 | 6 | 300 | 88.33 | 1148 | 884,009 | C | 10 | 400 | 10.3 | 11 | 300 | 94.54 | 677 | 1,517,531 | | | | | | | | | | A | 2 | 400 | 2.1 | 3 | 300 | 70.00 | 1883 | 512,486 | B | 5 | 400 | 5.3 | 6 | 300 | 88.33 | 1148 | 893,299 | C | 10 | 400 | 10.3 | 11 | 300 | 94.54 | 677 | 1,508,046 | | | | | | | | | | A | 2 | 400 | 2.1 | 3 | 300 | 70.00 | 1883 | 521,676 | B | 5 | 400 | 5.3 | 6 | 300 | 88.33 | 1148 | 902,498 | C | 10 | 400 | 10.4 | 11 | 300 | 94.54 | 677 | 1,536,028 |
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