Water for catalytic flue gas desulfurization
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What type of water should be used for catalytic flue gas desulfurization – fresh water, reclaimed water, deionized water, or condensate water? Will scaling occur in the pipelines and equipment if fresh water is used?
When fresh water is directly injected into the flue gas desulfurization tower, scaling basically does not occur under flowing conditions.
We use fresh water pipelines, and the scaling inside the pumps is quite severe, which directly affects the vibration of the pumps
Most likely, fresh water should be used; patent holders generally have requirements regarding the quality of fresh water, especially in terms of calcium and magnesium ions. Using other water sources (such as demineralized water) is too costly; it’s probably unaffordable. It seems that some individual companies use purified water obtained through acidic vapor stripping, and attention should be paid to the COD issue.