Regarding the issue of distillation column height
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I have a distillation project underway, and I’m not sure about the results. I hope fellow experts can help assess it. The feed stream consists of 70% methanol and 30% water at a rate of 2000 kg/h; it also contains trace amounts of about 3% sodium hydroxide. The goal is to achieve a separation that yields 99% pure methanol, with a yield of over 98%. So far, I’ve built a distillation tower that is 10 meters high, using 500Y mesh corrugated packing. The retraction section is 3600 mm high, while the distillation section is 2000 mm high. Since this is my first time working on a distillation process, I’m not entirely confident. I would appreciate any advice on whether these specifications meet the requirements. Thank you!
It seems like you’re working on a class assignment rather than a real project
You didn’t conduct detailed calculations and simulations
Contains about a trace 3% sodium hydroxide? It’s hard to guarantee the outcome later on
It is a project in the field of pharmaceuticals and chemicals
I calculated it using Aspen, but I’m not sure if the results are correct; I’m worried that the value might be too low
Are you worried about the precipitation of NaOH later?
Are you going to use a single tower or a double-effect one? What is the required energy consumption?
Single-column distillation is not technically difficult, and since there is no azeotrope involved, it is easy to carry out