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How can methanol, which is present in certain amounts in ethanol, be removed? Can ordinary distillation methods be used for this purpose? If so, how many distillation columns are required, and is such a process feasible?
By controlling the temperatures in the first and second cooling stages of ethanol distillation, methanol can be condensed in the second cooling stage; subsequent distillation in a single column then yields methanol.
How exactly is it done? Are there any process parameters? What is the specific procedure?
If you have a large amount of methanol available, it’s possible to produce 30,000 to 200,000 tons per year; in such cases, industrialization can be considered, and design assistance can be sought from design institutes.
With a low amount of methanol, it is quite difficult to remove it from ethanol