Optimization strategy for long-term catalyst deactivation in a fixed-bed reactor for methanol synthesis process
In this study, the application of a repeated process estimation-optimization strategy is investigated for a methanol synthesis reactor system in the presence of a slowly deactivating catalyst. The purpose of this strategy is to update the optimal transition of the control variable profile with feedb...
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| Format: | Article |
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Computers & Chemical Engineering
2012
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| author | Fuad, M.N.M. Hussain, Mohd Azlan Zakaria, A. |
| author_facet | Fuad, M.N.M. Hussain, Mohd Azlan Zakaria, A. |
| author_sort | Fuad, M.N.M. |
| collection | UM |
| description | In this study, the application of a repeated process estimation-optimization strategy is investigated for a methanol synthesis reactor system in the presence of a slowly deactivating catalyst. The purpose of this strategy is to update the optimal transition of the control variable profile with feedback from the process measurements. A state and parameter estimation method is formulated where the objective is to determine the current reactor state and model parameter from available process measurements data. In this strategy, the corresponding optimization problems are formulated as DAE-constrained optimization problems that are solved by using full discretization and large-scale NLP solver. Simulation results indicate that the strategy is able to track the theoretical optimum profile of the selected control variable as the catalyst deactivates. Moreover, with the formulated strategy, the performance of the reactor system in the presence of a long-term catalyst deactivation and unexpected plant operational changes can be improved significantly. |
| first_indexed | 2024-03-06T05:17:42Z |
| format | Article |
| id | um.eprints-7010 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:17:42Z |
| publishDate | 2012 |
| publisher | Computers & Chemical Engineering |
| record_format | dspace |
| spelling | um.eprints-70102021-02-10T03:51:03Z http://eprints.um.edu.my/7010/ Optimization strategy for long-term catalyst deactivation in a fixed-bed reactor for methanol synthesis process Fuad, M.N.M. Hussain, Mohd Azlan Zakaria, A. TA Engineering (General). Civil engineering (General) TP Chemical technology In this study, the application of a repeated process estimation-optimization strategy is investigated for a methanol synthesis reactor system in the presence of a slowly deactivating catalyst. The purpose of this strategy is to update the optimal transition of the control variable profile with feedback from the process measurements. A state and parameter estimation method is formulated where the objective is to determine the current reactor state and model parameter from available process measurements data. In this strategy, the corresponding optimization problems are formulated as DAE-constrained optimization problems that are solved by using full discretization and large-scale NLP solver. Simulation results indicate that the strategy is able to track the theoretical optimum profile of the selected control variable as the catalyst deactivates. Moreover, with the formulated strategy, the performance of the reactor system in the presence of a long-term catalyst deactivation and unexpected plant operational changes can be improved significantly. Computers & Chemical Engineering 2012 Article PeerReviewed Fuad, M.N.M. and Hussain, Mohd Azlan and Zakaria, A. (2012) Optimization strategy for long-term catalyst deactivation in a fixed-bed reactor for methanol synthesis process. Computers & Chemical Engineering, 44. pp. 104-126. ISSN 0098-1354, DOI https://doi.org/10.1016/j.compchemeng.2012.05.003 <https://doi.org/10.1016/j.compchemeng.2012.05.003>. http://www.scopus.com/inward/record.url?eid=2-s2.0-84861823857&partnerID=40&md5=352774864ad62245d8868e4c869e93d0 DOI 10.1016/j.compchemeng.2012.05.003 |
| spellingShingle | TA Engineering (General). Civil engineering (General) TP Chemical technology Fuad, M.N.M. Hussain, Mohd Azlan Zakaria, A. Optimization strategy for long-term catalyst deactivation in a fixed-bed reactor for methanol synthesis process |
| title | Optimization strategy for long-term catalyst deactivation in a fixed-bed reactor for methanol synthesis process |
| title_full | Optimization strategy for long-term catalyst deactivation in a fixed-bed reactor for methanol synthesis process |
| title_fullStr | Optimization strategy for long-term catalyst deactivation in a fixed-bed reactor for methanol synthesis process |
| title_full_unstemmed | Optimization strategy for long-term catalyst deactivation in a fixed-bed reactor for methanol synthesis process |
| title_short | Optimization strategy for long-term catalyst deactivation in a fixed-bed reactor for methanol synthesis process |
| title_sort | optimization strategy for long term catalyst deactivation in a fixed bed reactor for methanol synthesis process |
| topic | TA Engineering (General). Civil engineering (General) TP Chemical technology |
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