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2012 | 33 | 2 | 207-219
Article title

Distillation profiles in ternary heterogeneous mixtures with distillation boundaries: staged columns

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EN
Abstracts
EN
Distillation boundaries originate from saddle azeotropes, dividing the composition space into distillation regions. In heterogeneous mixtures distilled in packed columns, distillation regions overlap. The common area of distillation regions is parametrically sensitive, and it determines the possibilities of crossing (at a finite reflux) the distillation boundaries defined for a total reflux or reboil ratio. This work is an extended research of the paper (Królikowski et al., 2011) conducted to scrutinize whether the distillation regions overlapped in heteroazeotropic systems distilled in staged columns. Presented studies were performed by finding such composition points of the products, for which the rectifying profiles of staged columns were ended in different distillation regions. Calculations were executed for the heterogeneous mixture classified under Serafimov's topological class as 3.1-2: ethanol - benzene - water. Distillation regions for staged columns were found to overlap each other in the heterogeneous systems. As a result, their common part was parametrically sensitive.
Publisher

Year
Volume
33
Issue
2
Pages
207-219
Physical description
Dates
published
1 - 6 - 2012
online
5 - 7 - 2012
Contributors
  • Chemical Engineering Institute, Wrocław University of Technology, ul. C.K. Norwida 4/6, 50-373 Wrocław, Poland
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_v10176-012-0018-x
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