Ahmad, Arshad (2015) A semicontinuous approach for heterogeneous azeotropic distillation processes. In: Conference.
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Official URL: https://www.researchgate.net/publication/269821127...
Abstract
The separation of azeotropes has substantial energy and investment costs, and the available methods require high capital costs for reconstruction of process plants. As an alternative, a semicontinuous con- figuration that utilizes an existing plant with minor modifications has been explored. In this paper, a semicontinuous, heterogeneous azeotropic distillation process is proposed and acetic acid dehydration process is used as a case study. To carry out the simulation work, Aspen HYSYS® simulation software is used along with MATLAB® and an interface program to handle the mode-transition of the semicontinuous process. Sensitivity analyses on operating parameters are performed to identify the process limits. Comparisons are made to conventional heterogeneous azeotropic distillation, and dividing-wall distillation column on the annual cost. The results proved that the semicontinuous system is the best setup in terms of total annual costs and energy requirements.
Item Type: | Conference or Workshop Item (Paper) |
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Uncontrolled Keywords: | HAc dehydration, heterogeneous azeotropic distillation, dividing-wall distillation columns |
Subjects: | T Technology > TJ Mechanical engineering and machinery |
Divisions: | Mechanical Engineering |
ID Code: | 34433 |
Deposited By: | Liza Porijo |
Deposited On: | 10 Aug 2017 00:39 |
Last Modified: | 30 Aug 2017 03:32 |
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