How to calculate the optimal feed plate, minimum number of trays, etc. in distillation simulation?
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As title: Do you have any good and convenient methods? I am using Aspen 2006
Let’s simulate this using a simple method! The DSTWU module uses the Winn-Underwood-Gilliland shortcut algorithm to design the distillation column, and calculates the minimum reflux ratio, the minimum number of theoretical plates, the number of theoretical plates under a given reflux ratio, and the position of the feeding plate according to the given feeding conditions and separation requirements.
It’s almost the same as what was said above. After using that calculation, use radfrac calculation to see if the material on the feed plate is similar to the feed material. It should be almost enough. If the difference is large, adjust it to avoid back-mixing.
Yes, I also used DSWTU to simply calculate the number of trays and feed plates, and then used Radfrac regression. However, I couldn’t solve the problem twice using DSWTU, which was quite shocking.
May I ask how to determine the optimal feed plate for the petrofrac model?
It can also be determined by sensitivity analysis. This is a theoretical calculation. The actual calculation process still adds the tray efficiency.