10%~20% of the methanol mother liquor is used to recover methanol, which is then distilled to 99% purity
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Hello everyone. We have 60 tons per day of methanol mother liquor with a concentration of 10%~20%, and we need to recover methanol. Which distillation unit would be suitable for this purpose? Is supergravity distillation better or a conventional distillation tower? I hope the experts here can offer guidance and share their valuable opinions and suggestions. Thank you.
If the requirement for technical sophistication is not high, and the mother liquor does not contain components lighter than methanol, ordinary distillation is sufficient.
In 60 tons of crude methanol with a concentration of 10%-20%, only 6-12 tons of methanol is present, which is too small a amount for a distillation unit. I think it would be better to find a methanol factory and buy the methanol there at a low price
For simplicity, you can look for a manufacturer that sells one similar to an alcohol distillation tower; for a proper solution, consult a design institute for design work
If the requirement for technical sophistication is not high, and the mother liquor does not contain components lighter than methanol, ordinary distillation is sufficient.
Ordinary distillation will suffice; choosing a more sophisticated technology will result in higher costs
With a large processing capacity and a large tower diameter, supergravity distillation may not be suitable.
Do you have 60 tons every day? Is it still only 60 tons?
For enterprises that use hazardous chemicals without holding a license, a certain province currently considers that supergravity recovery in solvent recycling to fall outside the scope of activities that require a license, whereas ordinary distillation does require such a license; this aspect should also be taken into consideration
Whether supergravity or a distillation column is chosen, a concentration of 10–20% is too low; it is best to carry out preliminary distillation to increase the concentration before proceeding to the distillation column. The choice of equipment depends on a comprehensive comparison.