I would like to ask everyone: after the entire Aspen process is set up, how can one of the columns be optimized?
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I’m a junior undergraduate working on my graduation project. The entire Aspen process has been set up now, and I would like to ask everyone: if I want to carry out theoretical optimizations for each tower, such as optimizing parameters like the feed plate and reflux ratio, is it still possible to do so after the entire process has been established? If possible, how should it be done? As far as I know, when simulating a single column, it’s possible to select sensitivity, and when setting the type of variation, parameters such as theoretical plates and reflux ratio can be found. But now, after setting up the entire process, when I select sensitivity and set the type of variation, I can no longer find parameters specific to a single column. I’ve only been learning Aspen for a short time; I would appreciate it if everyone could offer some guidance. Thank you!
First, you need to choose a tower. Conduct sensitivity analysis one by one. That specialized textbook has a section on distillation columns; you can take a look at how they handle it.
Theoretically, it is possible to optimize the entire process; Aspen has a function for calculating the optimal value. However, if you have many columns, errors may occur, mainly due to the limitations of the mathematical methods used. It is possible to divide the process into several parts for optimization