Methanol distillation
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In three-column distillation, what other functions does adding water to the feed column serve besides extraction?
I haven’t heard of any other effects; I’m eager to hear more!
Reply to 2# jinghua2010: Besides extraction, temperature increase should also be considered, especially in pressure reactors
It should be to reduce the load on the pre-tower top condenser
Another aspect is adjusting the specific gravity of the crude alcohol to suppress the formation of azeotropes. . . . .
I’ve heard a claim that it is to increase the density of crude methanol, though the reason is unclear.
jinghua2010 should be heated up
It may also help to reduce the concentration of acidic substances that cause side effects, thereby preventing equipment corrosion.
Reply to 3# yhc504: Haven’t heard of it