Operational experience in desulfurization using PDS with adhesive addition
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Our facility uses a desulfurization method that involves PDS along with glue application, but the amount of desulfurization fluid required is extremely large. We are seeking advice from plants that employ this process regarding their operational experience in reducing the generation of desulfurization fluid.
"What does “the amount of desulfurization liquid is particularly large” mean? Is there water in the system?
The desulfurization using PDS along with glue addition belongs to wet desulfurization; a large amount of desulfurization solution is required, but the volume of gas to be treated is also high. If your facility uses two desulfurization towers in series, the amount of desulfurization liquid required will definitely be twice that of a single desulfurization tower.
I’m not sure whether the alkali used by the poster is the one obtained by evaporating ammonia or sodium hydroxide. If it’s concentrated ammonia, we have encountered similar problems in our factory as well; this occurs when the cooling water volume in the ammonia condenser at the top of the ammonia evaporation tower is too high, and the steam volume at the bottom of the tower is excessive, resulting in an excess of concentrated ammonia and an increase in the liquid level in the solution circulation tank. However, it is also possible to check whether there is any steam leakage into the desulfurization solution