Application for Testing Control Configurations of Binary Distillation Columns
نویسندگان
چکیده
The paper addresses the problem of testing various control configurations for binary distillation columns. Analyzing from plantwide control point of view the place of distillation column within the plant, the result will be the best control configuration. The proposed application Test BCC is a very useful tool to evaluate the resulted control configuration for distillation columns. First, it is presented the selection of best control configuration from plantwide control point of view. The resulted control configuration is applied to a real column or to a simulation module via DAQ modules. The two-point composition control problem of binary distillation columns is addressed. The control configuration uses a multivariable controller formed by a parametric decoupler and two monovariabile PI controllers. The example of propane propylene splitter is used to demonstrate the application efficiency, identifying the best control configurations from potential structures. The limits of this approach for control configuration selection are also analyzed. A closed-loop dynamics study formally shows the potential of the proposed application, matching or improving the behavior obtained with previous schemes. Key-words: plantwide control, composition control, dynamic simulations, distillation columns.
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