Separation of azeotropic mixture using multi-stage ultrasound-assisted flash distillation
A mathematical model for an ultrasound-assisted vapor liquid equilibrium (VLE) system developed in Aspen Custom Modeler is exported to Aspen Plus flowsheeting environment to form a block in the software library to represent a single stage flash separation unit. The block is then arranged in series t...
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| Main Authors: | , , , |
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| Format: | Article |
| Published: |
Berkeley Electronic Press
2015
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| Subjects: | |
| Online Access: | http://eprints.utm.my/id/eprint/55427/ http://dx.doi.org/10.1515/cppm-2015-0003 |
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| Summary: | A mathematical model for an ultrasound-assisted vapor liquid equilibrium (VLE) system developed in Aspen Custom Modeler is exported to Aspen Plus flowsheeting environment to form a block in the software library to represent a single stage flash separation unit. The block is then arranged in series to mimic an ultrasonically intensified distillation process. As a case study, an ethanol/ethyl acetate separation process is examined. The results show that a 99 mol% ethyl acetate recovery is established when a series of 27 flash VLE devices are used. The system is also evaluated for other minimum boiling azeotropic mixtures, and consistent results are obtained, thus revealing the potentials of ultrasound-assisted system as an alternative strategy for azeotropic mixture separations. |
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