Dynamic Simulator-Based APC Design for a Naphtha Redistillation Column
In this simulation study the operation of a naphtha redistillation column (a column with two feeds and three products) was analyzed with the application of Aspen HYSYS® software. The simulator, structure of local controllers and the product-quality estimators were based on the data of an industrial...
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| Format: | Article |
| Language: | English |
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University of Pannonia
2017-10-01
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| Series: | Hungarian Journal of Industry and Chemistry |
| Subjects: | |
| Online Access: | http://www.degruyter.com/view/j/hjic.2017.45.issue-1/hjic-2017-0004/hjic-2017-0004.xml?format=INT |
| _version_ | 1811292327802568704 |
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| author | Szabó László Stocz Klára Kubovicsné Szabó Laura Németh Sándor Szeifert Ferenc |
| author_facet | Szabó László Stocz Klára Kubovicsné Szabó Laura Németh Sándor Szeifert Ferenc |
| author_sort | Szabó László |
| collection | DOAJ |
| description | In this simulation study the operation of a naphtha redistillation column (a column with two feeds and three products) was analyzed with the application of Aspen HYSYS® software. The simulator, structure of local controllers and the product-quality estimators were based on the data of an industrial column in the Danube Refinery. The aim of the analysis was to identify the dynamic and steady-state effects of heating and cooling as well as the sidestream of product qualities. The relationship between the tray temperatures and the quality of the products was also identified and inferential calculations were made. Based on the identified relationships, a twolevel hierarchical control structure was developed. On the lowest level of the hierarchy are the local controllers of flowrates, liquid levels, pressure and duty. The inferential calculations are important components of the controller which serve as the controlled variables at the coordination level. The inputs of the estimators are the process data of the column, e.g. temperature, pressure and flowrate. On the top level of the control hierarchical structure the quality of the products are controlled by manipulating the setpoint of the local controllers. Based on the analysis of the Controlled Variable – Manipulated Variable relationship, closed-loop quality control was achieved with PID controllers. The result of the analysis may form the basis of Advanced Process Controller implementation. |
| first_indexed | 2024-04-13T04:43:46Z |
| format | Article |
| id | doaj.art-ecf00c2448f9472dab572f75a101868f |
| institution | Directory Open Access Journal |
| issn | 0133-0276 2450-5102 |
| language | English |
| last_indexed | 2024-04-13T04:43:46Z |
| publishDate | 2017-10-01 |
| publisher | University of Pannonia |
| record_format | Article |
| series | Hungarian Journal of Industry and Chemistry |
| spelling | doaj.art-ecf00c2448f9472dab572f75a101868f2022-12-22T03:01:55ZengUniversity of PannoniaHungarian Journal of Industry and Chemistry0133-02762450-51022017-10-01451172210.1515/hjic-2017-0004hjic-2017-0004Dynamic Simulator-Based APC Design for a Naphtha Redistillation ColumnSzabó László0Stocz Klára Kubovicsné1Szabó Laura2Németh Sándor3Szeifert Ferenc4Department of Technology and Development, MOL Plc., Olajmunkás u 2., Százhalombatta, H-2443, HungaryDepartment of Technology and Development, MOL Plc., Olajmunkás u 2., Százhalombatta, H-2443, HungaryDepartment of Technology and Development, MOL Plc., Olajmunkás u 2., Százhalombatta, H-2443, HungaryDepartment of Process Engineering, University of Pannonia, Egyetem u 10., Veszprém, H-8200, HungaryDepartment of Process Engineering, University of Pannonia, Egyetem u 10., Veszprém, H-8200, HungaryIn this simulation study the operation of a naphtha redistillation column (a column with two feeds and three products) was analyzed with the application of Aspen HYSYS® software. The simulator, structure of local controllers and the product-quality estimators were based on the data of an industrial column in the Danube Refinery. The aim of the analysis was to identify the dynamic and steady-state effects of heating and cooling as well as the sidestream of product qualities. The relationship between the tray temperatures and the quality of the products was also identified and inferential calculations were made. Based on the identified relationships, a twolevel hierarchical control structure was developed. On the lowest level of the hierarchy are the local controllers of flowrates, liquid levels, pressure and duty. The inferential calculations are important components of the controller which serve as the controlled variables at the coordination level. The inputs of the estimators are the process data of the column, e.g. temperature, pressure and flowrate. On the top level of the control hierarchical structure the quality of the products are controlled by manipulating the setpoint of the local controllers. Based on the analysis of the Controlled Variable – Manipulated Variable relationship, closed-loop quality control was achieved with PID controllers. The result of the analysis may form the basis of Advanced Process Controller implementation.http://www.degruyter.com/view/j/hjic.2017.45.issue-1/hjic-2017-0004/hjic-2017-0004.xml?format=INTdistillationmultilevel controlMIMOinferentialnaphtha distillationplant data |
| spellingShingle | Szabó László Stocz Klára Kubovicsné Szabó Laura Németh Sándor Szeifert Ferenc Dynamic Simulator-Based APC Design for a Naphtha Redistillation Column Hungarian Journal of Industry and Chemistry distillation multilevel control MIMO inferential naphtha distillation plant data |
| title | Dynamic Simulator-Based APC Design for a Naphtha Redistillation Column |
| title_full | Dynamic Simulator-Based APC Design for a Naphtha Redistillation Column |
| title_fullStr | Dynamic Simulator-Based APC Design for a Naphtha Redistillation Column |
| title_full_unstemmed | Dynamic Simulator-Based APC Design for a Naphtha Redistillation Column |
| title_short | Dynamic Simulator-Based APC Design for a Naphtha Redistillation Column |
| title_sort | dynamic simulator based apc design for a naphtha redistillation column |
| topic | distillation multilevel control MIMO inferential naphtha distillation plant data |
| url | http://www.degruyter.com/view/j/hjic.2017.45.issue-1/hjic-2017-0004/hjic-2017-0004.xml?format=INT |
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