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Dynamic parameter estimation and optimization for batch distillation
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DOI：10.1016/j.compchemeng.2015.12.001.png)
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摘要
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This work reviews a well-known methodology for batch distillation modeling, estimation, and optimization but adds a new case study with experimental validation. Use of nonlinear statistics and a sensitivity analysis provides valuable insight for model validation and optimization verification for batch columns. The application is a simple, batch column with a binary methanol-ethanol mixture. Dynamic parameter estimation with an l(1)-norm error, nonlinear confidence intervals, ranking of observable parameters, and efficient sensitivity analysis are used to refine the model and find the best parameter estimates for dynamic optimization implementation. The statistical and sensitivity analyses indicated there are only a subset of parameters that are observable. For the batch column, the optimized production rate increases by 14% while maintaining product purity requirements. (C) 2015 Elsevier Ltd. All rights reserved.
Keyword:
Dynamic parameter estimation
Nonlinear statistics
Experimental validation
Batch distillation
Dynamic optimization
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