Abstract
The hydrodynamic analogy (HA) approach offers an alternative to stage models describing packed distillation columns. So far, HA models have been successfully applied to separation processes, in which the properties of fluid streams entering the packing bed are pre-set as input parameters. However, in a continuous distillation process, the internal fluid streams are coupled via a reboiler and a condenser, thus making the inlet compositions a part of the solution.In the present work, an extension of the HA approach for the description of a continuous distillation process with finite reflux ratio is presented. Equations describing the relationships between the inlet and outlet streams at the column top and bottom are incorporated in the model. Furthermore, changes in compositions and flow rates induced by the feed stream are considered. The model is verified by comparison with experimental data on distillation of a methanol/ethanol/water mixture in a column of 2.3m height and 210mm diameter. The simulated composition profiles are in good agreement with the experiments.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
