Methanol recovery unit
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The existing methanol plant is used to treat used methanol, with a concentration of around 20-29%, containing hydrogen peroxide and organic substances. What type of design would be appropriate in this case? What safety aspects need to be taken into consideration?
Let’s consider this further. A preliminary idea is to use a pump to transport a 20% methanol mixture, which then passes through a reboiler heated by steam before being fed into the distillation tower. Should internal components in the form of trays be used, or something else?
What is the concentration of hydrogen peroxide? The decomposition temperature of hydrogen peroxide should be checked, or operation under reduced pressure should be employed; there should also be measures in place to prevent its accumulation in the distillation tower, otherwise problems will arise. Additionally, other substances can be considered to promote the stable decomposition of hydrogen peroxide.