کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
172687 458556 2012 23 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimization strategy for long-term catalyst deactivation in a fixed-bed reactor for methanol synthesis process
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Optimization strategy for long-term catalyst deactivation in a fixed-bed reactor for methanol synthesis process
چکیده انگلیسی

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.


► A process optimization strategy is proposed for a methanol synthesis reactor system.
► The procedure is applied to update the key process variable of the reactor system.
► The strategy can improve the performance of the reactor system significantly.
► The strategy can be implemented for the real-time optimization of the reactor system.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Chemical Engineering - Volume 44, 14 September 2012, Pages 104–126
نویسندگان
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