Full Text Available
Note: Clicking the button above will open the full text document at the original institutional repository in a new window.
A fundamental mass transfer model for an extractive distillation application
Thesis (M. Ing.) -- University of Stellenbosch, 1998.
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Stellenbosch : Stellenbosch University
2012
|
| Subjects: | |
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1867614117422956544 |
|---|---|
| access_status_str | Open Access |
| author | Crause, James Christoffel |
| author2 | Nieuwoudt, Izak |
| author_browse | Crause, James Christoffel Nieuwoudt, Izak |
| author_facet | Nieuwoudt, Izak Crause, James Christoffel |
| author_sort | Crause, James Christoffel |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (M. Ing.) -- University of Stellenbosch, 1998. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/55799 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:46:56.603Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/55799 A fundamental mass transfer model for an extractive distillation application Crause, James Christoffel Nieuwoudt, Izak Stellenbosch University. Faculty of Engineering. Dept. of Chemical Engineering. Distillation Dissertations -- Chemical engineering Thesis (M. Ing.) -- University of Stellenbosch, 1998. It is estimated that energy savings of up to 5% and savings on capital expenditure of up to 20% (in distillation applications) might be made simply by improving estimates of separation efficiency for packing or trays. An accurate mass transfer model is therefore of utmost importance when designing an energy efficient distillation column. A gas phase mass transfer model was developed based on evaporation of pure liquids in a short wetted-wall column. Significant enhancement of gas phase mass transfer in a wetted-wall column was observed for binary liquid mixtures with large differences between the pure component surface tensions. The gas phase mass transfer correlation based on wetted-wall experiments was used to predict the separation efficiency of the structured packing. Mellapak 350Y, in binary distillation (acetone-methanol). A correction factor of only 3% was needed to correlate the experimental and calculated separation efficiencies. The binary distillation model was extended to extractive distillation (acetone-methanol-ethylene glycol). The result s were inconclusive due to the sensitivity of the mass transfer model to errors in the modelling of the thermodynamics of the system studied. The extension of the mass transfer model developed in this work to extractive distillation is very important, since no previous research on the efficiency of structured packing in extractive distillation could be found. Masters 2012-08-27T11:37:14Z 2012-08-27T11:37:14Z 1998 Thesis http://hdl.handle.net/10019.1/55799 en Stellenbosch University 158 pages : ill. application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Distillation Dissertations -- Chemical engineering Crause, James Christoffel A fundamental mass transfer model for an extractive distillation application |
| title | A fundamental mass transfer model for an extractive distillation application |
| title_full | A fundamental mass transfer model for an extractive distillation application |
| title_fullStr | A fundamental mass transfer model for an extractive distillation application |
| title_full_unstemmed | A fundamental mass transfer model for an extractive distillation application |
| title_short | A fundamental mass transfer model for an extractive distillation application |
| title_sort | fundamental mass transfer model for an extractive distillation application |
| topic | Distillation Dissertations -- Chemical engineering |
| url | http://hdl.handle.net/10019.1/55799 |
| work_keys_str_mv | AT crausejameschristoffel afundamentalmasstransfermodelforanextractivedistillationapplication AT crausejameschristoffel fundamentalmasstransfermodelforanextractivedistillationapplication |