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Flash dryer unit optimization through advanced process control
Dissertation (MEng)--University of Pretoria, 2011.
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| Format: | Thesis |
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University of Pretoria
2013
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| _version_ | 1867613608804876288 |
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| access_status_str | Open Access |
| author2 | De Vaal, Philip L. |
| author_browse | De Vaal, Philip L. |
| author_facet | De Vaal, Philip L. |
| collection | Thesis |
| dc_rights_str_mv | © 2011 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MEng)--University of Pretoria, 2011. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/23760 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:38:51.633Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/23760 Flash dryer unit optimization through advanced process control De Vaal, Philip L. ndeclerk@angloplat.com De Clerk, Niel Flash dryer Platinum processing Model predictive control UCTD Dissertation (MEng)--University of Pretoria, 2011. In line with Anglo American’s asset optimization and environmental policies, the coal burning flash dryer operations at its smelters have been identified for potential optimization by means of advanced process control. For this project, the process and related literature were studied in detail and a revised control philosophy, which includes modifications to the existing basic control structure as well as a hybrid rule and model-predictive advanced control layer, was developed, installed and tested on one of these flash drying operations. Since commissioning of the APC, the flash dryer’s average throughput has increased by more than 6 %, despite higher feed moistures. Furthermore, even though coal consumption has increased slightly, the operation efficiency has improved by almost 5 %. This was made possible by improving the stability of the drying column outlet temperature by approximately 40 %, which in turn enabled the selection of a more optimal setpoint. Recent data has shown that APC utilization now exceeds 95 %. This is indicative of a successful controller installation with good site acceptance. Chemical Engineering unrestricted 2013-09-06T15:52:23Z 2011-05-10 2013-09-06T15:52:23Z 2011-04-19 2011-05-10 2011-04-04 Dissertation De Clerk, N 2011, Flash dryer unit optimization through advanced process control , MEng dissertation, University of Pretoria, Pretoria, viewed yymmdd < http://hdl.handle.net/2263/23760 > C11/106/ag http://hdl.handle.net/2263/23760 http://upetd.up.ac.za/thesis/available/etd-04042011-121021/ © 2011 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | Flash dryer Platinum processing Model predictive control UCTD Flash dryer unit optimization through advanced process control |
| title | Flash dryer unit optimization through advanced process control |
| title_full | Flash dryer unit optimization through advanced process control |
| title_fullStr | Flash dryer unit optimization through advanced process control |
| title_full_unstemmed | Flash dryer unit optimization through advanced process control |
| title_short | Flash dryer unit optimization through advanced process control |
| title_sort | flash dryer unit optimization through advanced process control |
| topic | Flash dryer Platinum processing Model predictive control UCTD |
| url | http://hdl.handle.net/2263/23760 http://upetd.up.ac.za/thesis/available/etd-04042011-121021/ |