Ask about the procedures for product refinement
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I would like to ask about the product refined desulfurized alcohol: if the circulating alkaline solution is reacted with the substance, the efficiency is poor and it needs to be replaced. What are the specific procedures for doing this?
Remove some of the base, then add fresh alkaline solution and catalyst
The concentration of the alkaline solution needs to be checked regularly; when its concentration is too low, simply remove some of the alkaline residue and add more until the desired concentration is reached
To replace the alkali, first remove some of the alkaline solution; it is essential to maintain a certain liquid level to prevent swirls that could carry away liquefied gas. Then, add fresh alkaline solution – this is necessary if the desulfurization effect is poor. Let’s analyze the sodium hydroxide concentration and the regenerated disulfides. In analytical testing, if the concentration of the alkaline solution is low, replace it with fresh alkali; if the concentration of disulfides is too high, add an appropriate amount of catalyst.