One Question per Day: Methanol Technology Exchange Edition 20180502
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Learn from the advanced practices of the *Brothers section; there are rewards for correct answers – every response earns a reward, allowing us to grow and mature through these Q&A sessions. Brief answer: The significance of adding extraction water to the distillation pre-column. Stable operation of the pre-column has a significant impact on maintaining the quality of methanol; to ensure good water solubility and satisfactory results in potassium permanganate titration, extractive distillation can be employed. If the value determined by potassium permanganate is low or its stability is poor, the amount of extraction water used can be increased appropriately. The amount of water used for extraction is generally kept at around 20% of the feed volume.
The stable operation of the pre-tower has a significant impact on maintaining the quality of methanol. To ensure water solubility and satisfactory results in potassium permanganate titration, extractive distillation can be employed; if the potassium permanganate value is low or its stability is poor, the amount of water used for extraction can be increased appropriately. The amount of water used for extraction is generally kept at around 20% of the feed volume.