Disulfides and alkali solutions
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Do disulfides react with alkali solutions? Why must the disulfides from the delayed coking desulfurization unit and the alkali slag be fed into separate tanks – one for the disulfides and the other for the alkali slag?
1. It is estimated that this is because the disulfides have nowhere to go. 2. We have never seen disulfides separated from alkaline solutions.
The disulfide tank has a partition: on one side is the alkaline solution and on the other side is the disulfide. Both the disulfide and the alkaline solution can be transferred to the alkali slag tank! But they didn’t use the same wire; the disulfide uses a separate wire, while the alkali removal for other equipment shares one common wire!
That is, there is a wire on each side of the baffle. The reason why disulfides are sent to the alkali slag tank together with the alkaline solution is that there is no more reasonable destination for them; this was an issue that arose later regarding the selection of the piping route.