Extractive Distillation Optimization with Mixed Entrainer Using Simulated Annealing Algorithm and Aspen Plus Automation Server
碩士 === 國立臺灣大學 === 化學工程學研究所 === 107 === Simulation-optimization was applied to determine near-optimal process designs in extractive distillation systems for the separation of an azeotropic mixture. As either the azeotropic mixture or the entrainer involved in the separation process became more compli...
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| Format: | Others |
| Language: | en_US |
| Published: |
2019
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| Online Access: | http://ndltd.ncl.edu.tw/handle/75f7m4 |
| Summary: | 碩士 === 國立臺灣大學 === 化學工程學研究所 === 107 === Simulation-optimization was applied to determine near-optimal process designs in extractive distillation systems for the separation of an azeotropic mixture. As either the azeotropic mixture or the entrainer involved in the separation process became more complicated, simulated annealing algorithm (SAA) programed in the client (MATLAB) was coupled with a simplified flowsheet built in the server (Aspen Plus) to solve the optimization problems. Each column in the separation process was optimized and the total cost of the whole process was calculated. Two extractive distillation processes using single and mixed entrainers and one extractive distillation system for separating a ternary azeotrope were proposed. Various shortcuts for building a simplified flowsheet to assure the stability and proper function of the simulator were also discussed. The optimization results obtained by SAA-based optimization demonstrated that this method can be well applied for solving the optimization problem dealing with a complicated extractive distillation with design variables ranging from six to twelve.
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