I’m asking experts: the shortcut module for methanol-water distillation will not run
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This post was last edited by syj876 on 2010-4-8 09:08. The attachment is the shortcut module for the methanol-water distillation I created. It can be opened by removing the doc suffix. Require bubble feeding and use a total condenser. Operation at atmospheric pressure, with 32.4% methanol in the feed; the top product is required to have a purity of 99.5%, and the methanol content at the bottom of the tower must be less than 0.5% (both as mole fractions). I followed the instructions in the shortcut module of the tutorial video, but it won’t run. I’d like to ask the experts: where lies the problem? Thank you! ! ! I’m using version 8.2; I can send it over if needed. I checked online today and found out that mole fraction is what it really means; I thought it was mole percent. In the product specifications, I first selected \"mole\" as the unit and then \"percent\". My English is really poor, sigh. What does the percent option per unit mole mean? I’m not sure. The attachment shows my revised version; the temperature of the raw material solution is 30 degrees. If bubble point feeding is chosen, should the second parameter be set to bubble point? Please advise.
I downloaded the attachment myself to verify it; after removing the .doc file, the software said a file was missing, but by clicking OK several times, it was possible to open it. Thank you.
Damn, there’s nothing I can do; I’m on version 8.0, so I can’t view your files. fly.gg@163.com
Mole fraction is the ratio of moles of a certain component to the total number of moles, while mole percent is that ratio expressed as a percentage. For example, if the client requires that the product at the top of the tower have a purity of 99.5%, then the mole fraction should be 0.995 and the mole percent should also be 99.5. If the value entered as the mole fraction is 99.5, convergence will not occur. . . .