How to determine the optimal amount of solvent for simulating extractive distillation using PROII?
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When using PROII to simulate extractive distillation, multiple variables can be adjusted (such as the number of theoretical plates, reflux ratio, solvent amount, etc.) to achieve separation. If too little solvent is used, it is difficult to achieve separation; if too much solvent is used, it increases operational costs. How do people determine the optimal amount of solvent to use?
The simplest approach is to create a case study by using different amounts of solvent, and then determining parameters such as the separation efficiency and energy consumption. Based on these calculations, an optimal solvent ratio can be identified; of course, this is a rough estimate. It was said upstairs that using an optimizer is of course the most accurate method, but optimizers sometimes don’t converge well.